CITY OF ISSAQUAH 2023-2028 Transportation Improvement Program
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CITY OF ISSAQUAH
2023-2028
Transportation Improvement
Program
6-Year Plan
Project 6-Year CIP Overall
Project Name 2023 2024 2025 2026 2027 2028 Future Years
Number Total Project Cost
Central Issaquah Multimodal I-90
TR 003 800,000 - - - 9,000,000 9,800,000 75,000,000 84,800,000
Crossing
TR 011 ADA Improvements 309,000 318,000 327,000 336,000 345,000 355,000 1,990,000 - 1,990,000
TR 016 Gilman Boulevard Improvements - 600,000 - - - 600,000 - 600,000
Newport SR 900 to SE 54th Street
TR 022 - 3,291,600 - 6,403,085 - 9,694,685 23,100,000 32,794,685
Improvements
Newport Way Maple to Sunset
TR 023 - - - 11,577,714 - 11,577,714 22,932,286 34,510,000
Improvements
NW Sammamish Road Non-Motorized
TR 028 700,000 5,500,000 5,500,000 - - 11,700,000 - 11,700,000
Improvement Project
TR 030 Pavement Management Program 2,315,250 2,517,762 2,711,291 2,728,000 2,857,000 3,033,000 13,129,303 - 13,129,303
SE Black Nugget Road Retaining Wall
TR 033 452,000 1,979,500 2,776,750
Repair
Newport Way SR 900 to 12th Ave NW
TR 043 - - - - 320,000 400,000 320,000 2,305,555 2,625,555
Bicycle and Pedestrian Improvements
TR 054 Annual Concrete Maintenance Program 500,000 525,000 551,250 650,000 650,000 660,000 2,876,250 - 2,876,250
TR 056 Highlands Signal Pole Painting 320,600 - - - - 320,600 - 320,600
TR 058 Strategic Small Capital Projects 309,000 318,000 327,000 336,000 345,000 355,000 1,635,000 - 1,635,000
TR 061 Sunset Way Landslide Repair - 1,500,000 - - - - 1,500,000 - 1,500,000
TR 066 NW Gilman Bridge Rehabilitation 765,000 2,855,000 - - - - 3,620,000 - 3,620,000
$ 6,470,850 $ 19,404,862 $ 12,193,291 $ 22,030,799 $ 13,517,000 $ 4,803,000 $ 68,763,552 $ 123,337,841 $ 192,101,393
Transportation
Central Issaquah Multimodal I-90 Crossing
Project Number: TR 003
Strategic Plan Goal: Mobility
Growth and Development
Project Manager: John Mortenson
Starting Year: 2022
Completion Year: Future Years
Estimated Annual Ongoing Costs*: N/A
*Subject to change and does not represent a budget commitment
Mobility Master Plan Score: 46
Project Summary
Install a new three-lane I-90 crossing within Issaquah’s regional growth center. SR 900 and Front
Street, bike lane, and sidewalk on both sides of the street. This project will be closely coordinated with
the Washington State Department of Transportation (WSDOT), King County METRO, Sound Transit,
and other stakeholders. The first phase of this project is a planning study to idenitfy the preferred
alternative.
Project Justification
This project substantially increases connectivity within the regional growth center between the urban
core located north and south of I-90, thus improving north-south mobility within Issaquah. The project
was identified as the preferred alternative for Central Issaquah Plan's SEPA Determination.
TR 003 -Central Issaquah Multimodal I-90 Crossing
2023 2024 2025 2026 2027 2028 Future Years
American Rescue Plan Act 800,000 - - - - -
Street Mitigation 3,520,000
Federal Grant 5,480,000
Total Revenue 800,000 - - - 9,000,000 - -
Planning 800,000
Design & Environmental Documentation - - 9,000,000 - -
Right of Way 20,000,000
Construction - - - - 55,000,000
Inflation - - - -
Contingency - - - -
Art Fund Contribution - - - -
Total Expenses 800,000 - - - 9,000,000 - 75,000,000
Net Revenue and Expenses - - - - - - (75,000,000)
Transportation
ADA Improvements
Project Number: TR 011
Strategic Plan Goal: Mobility
Project Manager: John Mortenson
Starting Year: 2020
Completion Year: Ongoing Program
Estimated Annual Ongoing Costs*: $2,000
*Subject to change and does not represent a budget commitment
Mobility Master Plan Score: N/A
Project Summary
This project will remove potential barriers to people with disabilities in the public right-of-way by
upgrading curb ramps, sidewalks, pedestrian signal heads, pedestrian push buttons, and junction box
lids to meet current ADA standards and guidelines.
Project Justification
The City of Issaquah is committed to removing barriers to people with disabilities in the public right of
way to ensure tangible and meaningful equal access in the City. This project removes barriers in the
public right of way to people with disabilities.
TR 011 - ADA Improvements
2023 2024 2025 2026 2027 2028 Future Years
Real Estate Excise Tax 2 309,000 318,000 327,000 336,000 345,000 355,000 -
Total Revenue 309,000 318,000 327,000 336,000 345,000 355,000 -
Construction 300,000 300,000 300,000 300,000 300,000 300,000 -
Inflation 9,000 18,000 27,000 36,000 45,000 55,000 -
Total Expenses 309,000 318,000 327,000 336,000 345,000 355,000 -
Net Revenue and Expenses - - - - - - -
Transportation
Gilman Boulevard Improvements
Project Number: TR 016
Strategic Plan Goal: Mobility
Project Manager: John Mortenson
Starting Year: 2017
Completion Year: 2024
Estimated Annual Ongoing Costs*: N/A
*Subject to change and does not represent a budget commitment
Mobility Master Plan Score: 50
Project Summary
Complete a design vision for the Gilman corridor with a focus on safety improvements and development
standards. The project would inform potential developers of the future Gilman Boulevard layout and
serve as the basis for future capital projects.
Project Justification
Following the adoption of the Central Issaquah Plan, the City of Issaquah identified the need to improve
NW Gilman Boulevard from SR900/17th Ave NW to Front Street N for people walking, biking, taking
transit and driving. As a minor arterial in the City’s street network, Gilman provides critical access to
the City’s commercial center and area destinations. However, the City’s Development Standards do
not include design standards for Gilman and state that improvements shall be determined on a case-
by-case basis. As redevelopment occurs and Central Issaquah evolves “into a more livable,
sustainable and balanced mixed-use urban area” (Central Issaquah Plan), the lack of street standards
causes uncertainty for property owners, City staff, and developers.
TR 016 - Gilman Boulevard Improvements
2023 2024 2025 2026 2027 2028 Future Years
General Fund 600,000 - - - - -
Total Revenue - 600,000 - - - - -
Design & Engineering 582,524 - - - - -
Inflation 17,476
Total Expenses - 600,000 - - - - -
Net Revenue and Expenses - - - - - - -
Transportation
Newport SR 900 to SE 54th Street Improvements
(Previously named Newport SR 900 and SE 54th Street Improvements)
Project Number: TR 022
Strategic Plan Goal: Mobility
Project Manager: Isabel Diaz
Starting Year: 2017
Completion Year: 2033
Estimated Annual Ongoing Costs*: $50,000
*Subject to change and does not represent a budget commitment
Mobility Master Plan Score: 50
Project Summary
Install intersection controls and access management along the Newport Way corridor from SR 900 to
SE 54th Street to include one ten-foot travel lane, a bi-directional five-foot bike lane, an eight-foot
landscaped central median, a twelve-foot left turn pocket (where required), six-foot landscaped buffers
on both sides of the roadway, a six-foot sidewalk on the south side of Newport Way NW, and a twelve-
foot mixed use facility for the Mountains to Sound Greenway that meets sidewalk requirements for a
Parkway on the north side of Newport Way NW. Construction will occur in multiple phases. The first
phase will be from SR 900 west 1800 feet and connect to the proposed trailhead at Harvey Manning
Park.
Project Justification
The Newport Way corridor from SR 900 to SE 54th St was examined in the 2015 Pedestrian Crossing
Study and discussed in the Central Issaquah Plan. The project will help reduce conflicts between
modes, vehicle speeds, and hazards. Non-motorized mobility will be improved for both pedestrians and
bicyclists while supporting ADA accessibility.
TR 022 - Newport SR 900 to SE 54th Street Improvements
2023 2024 2025 2026 2027 2028 Future Years
Grant - Federal - 2,200,000 - 5,480,000 - - -
Grant - State - - - - - -
Mitigation/Impact Fees - Street - 1,091,600 - 923,085 - - -
General Fund
Total Revenue - 3,291,600 - 6,403,085 - - -
Design & Engineering - - - - - -
Acquisition/ROW - 3,105,283 - - - - -
Construction - - - 5,122,460 13,000,000 4,996,482
Inflation - 186,317 - 768,379 - 3,249,701
Contingency - - 512,246 - 1,796,407
Art Fund Contribution - - - - 57,410
Total Expenses - 3,291,600 - 6,403,085 - 13,000,000 10,100,000
Net Revenue and Expenses - - - - - (13,000,000) (10,100,000)
Transportation
Newport Way Maple to Sunset Improvements
Project Number: TR 023
Strategic Plan Goal: Mobility
Project Manager: John Mortenson
Starting Year: 2018
Completion Year: 2031
Estimated Annual Ongoing Costs*: $50,000
*Subject to change and does not represent a budget commitment
Mobility Master Plan Score: 46
Project Summary
This project will add a second southbound lane from Maple to State Route 900 south of Holly, construct
roundabouts at Juniper, Holly, and Dogwood, construct signal modifications at Sunset and Maple, and
construct bicycle and pedestrian access. Phase 1 will construct improvements along from Maple to
Juniper. Phase 2 will construct improvements from Junipter to 900 feet south of Holly.
Project Justification
This project will reduce traffic congestion and improve inter-city traffic by constructing a second
southbound land and roundabouts at Juniper, Holly, and Dogwood. The bicycle lanes and sidewalk will
construct a missing connection along a corridor that includes the regional growth center, Issaquah
Valley Elementary School, and many residential units.
TR 023 - Newport Way Maple to Sunset Improvements
2023 2024 2025 2026 2027 2028 Future Years
Grant - Federal - - - 5,480,000 - - -
Grant - State - - - - - -
School Zone Safety Fund - - - 600,000 - - -
Real Estate Excise Tax 2 - - - 997,714 - - -
Mitigation/Impact Fees - Street - - - 4,500,000 - - -
Total Revenue - - - 11,577,714 - - -
Construction - - - 8,905,922 - 13,000,000 9,932,286
Inflation - - - 1,335,904 - - -
Contingency - - - 1,335,888 - - -
Art Fund Contribution - - - - - -
Total Expenses - - - 11,577,714 - 13,000,000 9,932,286
Net Revenue and Expenses - - - - - (13,000,000) (9,932,286)
Transportation
NW Sammamish Road Non-Motorized Improvement Project
Project Number: TR 028
Strategic Plan Goal: Mobility
Project Manager: Matt Ellis
Starting Year: 2018
Completion Year: 2025
Estimated Annual Ongoing Costs*: $37,600
*Subject to change and does not represent a budget commitment
Mobility Master Plan Score: 44
Project Summary
Widen the NW Sammamish roadway between 193rd Pl SE and the State Park Entrance as well as
install curb, gutter, sidewalks, bike lanes, and storm drainage.
Project Justification
With an increase in traffic volumes on NW Sammamish Rd, these improvements will enhance
pedestrian and bicycle safety. Where possible, the project scope will include low impact
development/natural drainage practices, pervious pavements, and other low impact development
design.
TR 028 - NW Sammamish Road Non-Motorized Improvement Project
2023 2024 2025 2026 2027 2028 Future Years
General Fund - - - - - -
School Zone Safety Fund - - - - - -
Real Estate Excise Tax 1 700,000 - - - - -
Total Revenue 700,000 - - - - - -
Design & Engineering 679,612 - - - -
Construction - 4,719,815 4,600,778 - - -
Inflation 20,388 284,605 416,140 - - -
Contingency - 471,981 460,078 - - -
Art Fund Contribution - 23,599 23,004 - - -
Total Expenses 700,000 5,500,000 5,500,000 - - -
Net Revenue and Expenses - (5,500,000) (5,500,000) - - - -
Transportation
Pavement Management Program
Project Number: TR 030
Strategic Plan Goal: Infrastructure
Mobility
Growth and Development
Environmental Stewardship
Project Manager: Bennett Ashbaugh
Starting Year: 2010
Completion Year: Ongoing Program
Estimated Annual Ongoing Costs*: N/A
*Subject to change and does not represent a budget commitment
Mobility Master Plan Score: N/A
Project Summary
Perform annual street maintenance projects to preserve the life of existing pavement and reduce degradation of the
roadway. This program is vital to protect City infrastructure and improve safety within the roadway network.
Project Justification
The Pavement Management Program (PMP) coordinates interdepartmental projects to provide cost effective
maintenance efforts that extend the life of roadways and sustain a safe, reliable, and low maintenance surface for all
modes of transportation. Overlaying streets prior to deterioration of structural integrity is more cost effective than
rebuilding entire street structures. A healthy PMP maximizes City investments by providing cost-effective methods to
expand non-motorized facilities and extend the life of pavement facilities.
Between 2016 and 2019, the funding level remained relatively consistent, averaging $900K per year. At this funding
level, the maintenance cycle for the City's 285 lane miles of roadway was on a 70-year cycle, meaning once a roadway
receives a maintenance treatment, such as an overlay or reconstruction, it will not receive another treatment for 70 or
more years. Without maintenance, flexible pavements (asphalt) have a typical life cycle of 20-25 years. Proper
maintenance in an adequately funded program can extend the life cycle of a roadway to 40-50 years.
The 2021 adopted budget increased funding for PMP to a robust $2.3 million dollars. This level of funding allows the
Pavement Management Program to fully utilize different maintenance techniques, reflecting a healthy balance between
preventative and reactive maintenance, reducing the maintenance cycle to 35 years.
The PMP workplan for the 2023-2028 CIP includes the contracted efforts for arterial crack sealing, residential cape
seals, and asphalt overlays on a variety of road classes. The PMP contracted work is supplemented by the in-house
crews who perform preparatory work ahead of the contractors, and other miscellaneous patching efforts throughout the
City right-of-way.
TR 030 - Pavement Management Program
2023 2024 2025 2026 2027 2028 Future Years
General Fund - - - - - -
Real Estate Excise Tax 1 - - - - - -
Real Estate Excise Tax 2 2,315,250 1,100,000 1,100,000 1,100,000 1,100,000 1,100,000 -
Total Revenue 2,315,250 1,100,000 1,100,000 1,100,000 1,100,000 1,100,000 -
Inspection Vehicle - - - - - - -
Materials Testing 46,000 48,500 51,000 54,000 58,000 62,000 -
Pavement Condition Scan - - 85,000 - - 100,000 -
Pavement Management 2,201,816 2,326,747 2,352,661 2,382,036 2,427,263 2,499,263 -
Inflation 67,434 142,515 222,630 291,964 371,737 371,737 -
Total Expenses 2,315,250 2,517,762 2,711,291 2,728,000 2,857,000 3,033,000 -
Net Revenue and Expenses - (1,417,762) (1,611,291) (1,628,000) (1,757,000) (1,933,000) -
Transportation
SE Black Nugget Road Retaining Wall Repair
Project Number: TR 033
Strategic Plan Goal: Infrastructure
Project Manager: John Mortenson
Starting Year: 2022
Completion Year: 2025
Estimated Annual Ongoing Costs*: $25,000
*Subject to change and does not represent a budget commitment
Project Summary
Replace retaining wall behind Fred Meyer along Black Nugget Road.
Project Justification
In 2010 the City retained consultants to evaluate the structural integrity of the wall. The study
recommended a regimen of ongoing inspection and repairs as necessary and eventually a major wall
upgrade. The City has been making the necessary repairs since the study, but wall replacement will be
required in 2024.
TR 033 - SE Black Nugget Road Retaining Wall Repair
2023 2024 2025 2026 2027 2028 Future Years
Real Estate Excise Tax 1 452,000 1,000,000 1,000,000 - - -
Total Revenue 452,000 1,000,000 1,000,000 - - - -
Design & Engineering 400,000 - - - - - -
Construction - 1,699,614 2,324,247 - -
Inflation 12,000 102,427 210,082 - - - -
Contingency 40,000 169,961 232,425 - - - -
Art Fund Contribution - 7,498 9,996 - - - -
Total Expenses 452,000 1,979,500 2,776,750 - - - -
Net Revenue and Expenses - (979,500) (1,776,750) - - - -Transportation
Newport Way SR 900 to 12th Ave NW Bicycle and
Pedestrian Improvements
(Previously named Tibbets Valley Park Frontage Improvements)
Project Number: TR 043
Strategic Plan Goal: Mobility
Project Manager: Isabel Diaz
Starting Year: 2026
Completion Year: 2028
Estimated Annual Ongoing Costs*: $5,000
*Subject to change and does not represent a budget commitment
Mobility Master Plan Score: 56
Project Summary
Construct improvements for bicyclists and pedestrian along Newport Way between SR 900 and 12th
Avenue NW. The project will construct the a portion of the Mountains to Sound Trail on the north side of
Newport Way and frontage improvements along Tibbetts Valley Park. The specific improvements have
not yet been defined and will be integrated with future improvements at Tibbetts Valley Park.
Project Justification
This project provides an important connection for pedestrians and bicyclists within the regional growth
center and direct connection to the transit center. Additionally, this work allows the Parks Department to
further develop Tibbitts Valley Park.
TR 043 - Newport Way SR 900 to 12th Ave NW Bicycle and Pedestrian Improvements
2023 2024 2025 2026 2027 2028 Future Years
Grant - Federal - 260,000 - 1,992,960
Mitigation/Impact Fees - Bike/Pedestrian - 60,000 400,000 312,595
Total Revenue - - - - 320,000 400,000 2,305,555
Design & Engineering - 320,000 - -
Acquisition/ROW - - 400,000 -
Construction - - - 1,600,000
Inflation - - - 320,000
Contingency - - - 384,000
Art Fund Contribution - - - 1,555
Total Expenses - - - - 320,000 400,000 2,305,555
Net Revenue and Expenses - - - - - - -Transportation
Annual Concrete Maintenance Program
Project Number: TR 054
Strategic Plan Goal: Infrastructure
Mobility
Growth and Development
Project Manager: Bennett Ashbaugh
Starting Year: 2021
Completion Year: Ongoing Program
Estimated Annual Ongoing Costs*: N/A
*Subject to change and does not represent a budget commitment
Mobility Master Plan Score: N/A
Project Summary
Preserve, maintain, and replace the City's concrete infrastructure as it relates to the multi-modal transportation
network.
Project Justification
Concrete infrastructure within the City’s right-of-way serves multiple purposes. It is the backbone of the City's
pedestrian networks, the primary source of stormwater conveyance, and is increasingly used as a physical barrier
to improve safe multi-modal travel within the transportation system.
Though concrete structures have a long life expectancy, damage regularly results from tree roots, settling, traffic
accidents, and overweight loads. As trees mature, their roots lift the adjacent sidewalk panels putting the sidewalk
out of compliance with the ADA and increasing the City's risk for trip and fall claims. Concrete curbs and gutters
also serve as the primary stormwater conveyance system. When concrete fails, it allows water to enter the
roadway base contributing to "bottom-up" failures such as rutting, settling, and fatigue cracking. With flexible
pavements (asphalt), the base has a very important role in roadway life expectancy.
The current level of funding does not address the number of concrete issues throughout the City and in many
areas leaves the City out of compliance. Currently, the City funds concrete replacement through the TR 011 ADA
Improvements program and, to a minor degree, the Public Works operating budget. Funding concrete
maintenance and replacement from the minor amount included in the Street Operating budget goes toward
temporary patches and fixing a few of the very worst defects.
TR 054 - Annual Concrete Maintenance Program
2023 2024 2025 2026 2027 2028 Future Years
General Fund 350,000 360,000 370,000 380,000 390,000 400,000 -
School Zone Safety Fund 150,000 165,000 181,250 270,000 260,000 260,000 -
Total Revenue 500,000 525,000 551,250 650,000 650,000 660,000 -
Inspection Vehicle - - - - - - -
Materials Testing 30,000 35,000 40,000 45,000 50,000 50,000 -
Concrete Maintenance 455,437 460,283 465,734 535,357 515,217 515,217
Inflation 14,563 29,717 45,516 69,643 84,783 94,783 -
Total Expenses 500,000 525,000 551,250 650,000 650,000 660,000 -
Net Revenue and Expenses - - - - - - -Transportation
Highlands Signal Pole Painting
Project Number: TR 056
Strategic Plan Goal: Infrastructure
Growth and Development
Project Manager: Bennett Ashbaugh
Starting Year: 2020
Completion Year: 2024
Estimated Annual Ongoing Costs*: N/A
*Subject to change and does not represent a budget commitment
Mobility Master Plan Score: N/A
Project Summary
Clean, prep, prime, and paint 25 signal poles, 34 mast arms, and 22 pedestrian poles in the Highlands.
The green paint on these poles is shedding due to poor initial workmanship. This work will be split into
three consecutive phases, completing one phase per year beginning in 2021.
Project Justification
Specified poles are shedding paint installed during the initial installation. If not addressed, the paint
degradation could lead to rust and shorten the life of the equipment. It is also an aesthetic eyesore in
the urban village. Public Works received 3 estimates for this work in 2019, resulting in an average total
cost of $650,000. More than 50% of this cost is due to traffic control, overtime for night work, and police
presence, when required, in intersections.
TR 056 - Highlands Signal Pole Painting
2023 2024 2025 2026 2027 2028 Future Years
Real Estate Excise Tax 1 320,600 - - - - -
Total Revenue 320,600 - - - - -
Painting Contract 311,262 - - - - -
Inflation 9,338 - - - - -
Total Expenses 320,600 - - - - - -
Net Revenue and Expenses - - - - - - -Transportation
Strategic Small Capital Projects
Project Number: TR 058
Strategic Plan Goal: Mobility
Project Manager: John Mortenson
Starting Year: 2021
Completion Year: Ongoing Program
Estimated Annual Ongoing Costs*: $2,000
*Subject to change and does not represent a budget commitment
Mobility Master Plan Score: N/A
Project Summary
This ongoing capital project strategically designs and constructs early implementation, small scale
capital improvements to complete "near-term connections and efficiencies in the mobility system," as
outlined in objective MO2 of the Strategic Plan. The project will focus on sidewalk and bicycle gaps, as
well as safety improvements.
Project Justification
This project identifies, designs, and constructs small capital projects consistent with the Strategic Plan's
Mobility goals and objectives. Addressing gaps in the mobility system and improving safety are high
priorities in the Mobility Master Plan.
TR 058 - Small Strategic Capital Projects
2023 2024 2025 2026 2027 2028 Future Years
School Zone Safety Fund 309,000 318,000 327,000 336,000 345,000 35,000 -
Total Revenue 309,000 318,000 327,000 336,000 345,000 35,000 -
Construction 300,000 300,000 300,000 300,000 300,000 300,000 -
Inflation 9,000 18,000 27,000 36,000 45,000 55,000 -
Total Expenses 309,000 318,000 327,000 336,000 345,000 355,000 -
Net Revenue and Expenses - - - - - - -Transportation
Sunset Way Landslide Repair
Project Number: TR 061
Strategic Plan Goal: Infrastructure
Project Manager: John Mortenson
Starting Year: 2022
Completion Year: 2023
Estimated Annual Ongoing Costs*: N/A
*Subject to change and does not represent a budget commitment
Mobility Master Plan Score: N/A
Project Summary
Repair an ongoing slow-moving landslide and hillside settling issue occurring below W Sunset Way
near the intersection with Sunset Court NW.
Project Justification
The landslide is creating severe cracking and displacement in the sidewalk, affecting the westbound
lane of W Sunset Way, and is beginning to threaten utilities in the area, including a power pole, City
Water, Sewer, and Stormwater mains located below the settling sidewalk. The area has progressively
settled over the course of a few years but has increased more drastically in 2020 and 2021.
TR 061 - Sunset Way Landslide Repair
2023 2024 2025 2026 2027 2028 Future Years
Stormwater Utility
Sanitary Sewer Utility
Real Estate Excise Tax 1 - - - - - -
Total Revenue - - - - - - -
Design
Construction 1,500,000 - - - - -
Total Expenses - 1,500,000 - - - - -
Net Revenue and Expenses - - - - - - -Transportation
NW Gilman Bridge Rehabilitation
Project Number: TR 066
Strategic Plan Goal: Infrastructure
Project Manager: John Mortenson
Starting Year: 2023
Completion Year: 2024
Estimated Annual Ongoing Costs*: N/A
*Subject to change and does not represent a budget commitment
Mobility Master Plan Score: N/A
Project Summary
The project will seismically retrofit the NW Gilman Bridge over Issaquah Creek and widen the bridge to
meet the Central Issaquah Boulevard Section. The bicycle lane will be protected to meet the Mobility
Master Plan requirement for a Level of Traffic Stress of 2 or better.
Project Justification
The bridge was constructed in 1940. Preliminary seismic evaluations determiend the bridge does not
meet current seismic standards. The bridge has a load limit rating for large emergency vehicles. The
project will bridge the bridge up to current standards.
TR 066 - NW Gilman Bridge Rehabilitation
2023 2024 2025 2026 2027 2028 Future Years
Grant - Federal 765,000 2,855,000 - - - -
Total Revenue 765,000 2,855,000 - - - - -
Design & Engineering 745,000 - - - - - -
Acquisition/ROW 20,000 -
Construction 2,049,000
Construction Engineering - 335,000 -
Inflation - 191,000 -
Contingency 280,000 -
Art Fund Contribution - -
Total Expenses 765,000 2,855,000 - - - - -
Net Revenue and Expenses - - - - - - -Future Year Projects
The following pages summarize the anticipated future year projects, or projects that are not
anticipated until after 2028. The anticipated costs are rough estimates and would be refined further
should the project timeline be accelerated.
Future
Project Asset
Project Name Project Summary Year
Number Category
Costs
Provide a 14-foot-wide non-
motorized crossing of I-90 at
10 Avenue NW between
10th Avenue Non-
Tibbett's District and
TR 002 motorized I-90 Transportation
Pickering Place. This will 8,460,500
Crossing
connect the Issaquah
Transit Center to the Costco
campus.
Install a new two-lane
roadway with turn lanes at
intersections including
13 Avenue NW
TR 005 Transportation sidewalks, curb and gutter,
Improvements 5,040,625
landscaping, streetlights, on-
street parking, and a traffic
signal at NW Maple Street.
Install a new two-lane
roadway with turn lanes at
intersections including
15 Avenue NW sidewalks, curb and gutter,
TR 006 Transportation
Improvements landscaping, streetlights, on- 5,171,550
street parking, and traffic
signals at NW Maple Street
and at NW Newport Way.
Rebuild 221 Place SE with
two 11-foot travel lanes, 8-
221st Place SE foot parking, as well as
from SE 62nd landscaping, curb, gutter,
TR 008 Transportation
Street to SE 56th and sidewalk additions from 3,768,871
Street the new SE 62 Street
improvements to match the
existing sidewalk.Future
Project Asset
Project Name Project Summary Year
Number Category
Costs
Install new traffic signal at
the intersection of Central
Park Lane NE and NE Park
Drive. Construct a mini-
roundabout at the
intersection of Central Park
Lane NE and College Drive.
Central Park Complete a design study to
TR 010 Traffic Signal and Transportation address additional
2,000,000
Mini-Roundabout pedestrian crossing issues
along NE Park Drive
between 17th Ave NE and
the trail crossing east of
Central park Lane NE,
including a potential second
traffic signal at the school
driveway.
Front & Sunset
Design and construct left-
TR 012 Intersection Left- Transportation
turn lanes on Sunset Way. 1,011,960
turn Improvements
Complete a pre-design study
based on the Central
Issaquah Plan to determine
Front Street &
feasibility and appropriate
Gilman Boulevard
TR 013 Transportation capacity improvements to
Intersection 3,652,299
relieve traffic congestion and
Enhancement
improve traffic safety within
the Front Street corridor and
Gilman Boulevard.
Reconfigure Front Street N
and the I-90 Interchange to
Front Street & I-90 provide additional capacity
TR 014 Transportation
Interchange at the Front Street 2,554,000
Interchange in coordination
with WSDOT.
Design and construct
intersection improvements,
re-align the intersection, re-
Front Street & NW
surface the street, and
Dogwood
TR 015 Transportation construct curb, gutter,
Intersection 2,821,625
sidewalk, storm drainage,
Improvements
adjust utilities, install
streetlights, and install a
new traffic signal.Future
Project Asset
Project Name Project Summary Year
Number Category
Costs
Widen the roadway to
include curb, gutter,
Issaquah Pine sidewalks, bike lanes, and
TR 017 Lake Road Transportation other multi-modal elements
12,798,864
Improvements as well as storm drainage,
irrigation, trees, and
crosswalks.
Replace the interim "mini
roundabout" constructed in
2017 with a "standard" full-
Maple Street
sized roundabout that
TR 019 Commons Transportation
revises shopping center 5,382,238
Improvements
driveway entrances in
addition to improving Maple
Street.
Widen the roadway to 28-
feet to provide two travel
NE Dogwood lanes, on-street parking, and
TR 021 Street Road Transportation a continuous six-foot wide
1,771,222
Widening sidewalk between the East
Fork Issaquah Creek bridge
and Front Street North.
This is a new two-lane
roadway with turn lanes at
intersections that function as
NW Mall Street a pedestrian corridor based
Improvements - on the Central Issaquah
TR 026 Transportation
12th Avenue NW Area Plan. The project 17,192,031
to 7th Avenue NW includes sidewalks, curb and
gutter, tree wells,
streetlights, and on-street
parking.
Provide a 14-foot-wide non-
NW Sammamish
motorized crossing of I-90
Road Non-
TR 027 Transportation west to improve pedestrian
motorized 11,296,320
and bike access to the State
Crossing
Park.
Widen the eastbound
approach of Southeast 51
SE 51 Street Street to include a second
TR 032 Transportation
Widening left turn pocket at the 430,476
intersection with East Lake
Sammamish Parkway.
Widen SE Black Nugget
Road to provide two
SE Black Nugget
TR 034 Transportation westbound left-turn lanes
Road Widening 1,344,892
approaching Issaquah Fall
City Road.Future
Project Asset
Project Name Project Summary Year
Number Category
Costs
Widen NW Sammamish
Road at SE 56 Street for
general purpose lanes in
both directions between
East Lake Sammamish
Road and the SR 900 west
SR 900 & NW
bound on-ramp. Construct
TR 035 Sammamish Road Transportation
an additional general 65,203,735
Widening
purpose lane in the
westbound direction
approaching the I-90 ramps
from 11 Avenue NW to the
metered location on the
westbound I-90 on-ramp.
As described in the
Simplified Concurrency
Program, provide additional
right turn pocket at the SR
900/I-90 eastbound ramps
and modify SR 900 between
SR 900 I-90 East
TR 036 Transportation off-ramp and Gilman
Bound Ramps 1,205,805
Boulevard intersection to
accommodate the additional
turning capacity. This
improvement provides for a
third eastbound right turn
lane.
Widen SR 900 to three lanes
in each direction between
Maple Street and Newport
TR 037 SR 900 Widening Transportation
Way. Provide additional turn 8,021,311
lane capacity at the Newport
Way intersection.
Improve roadway crossing
for the Sammamish Trail,
Rainier Boulevard Trail, and
the Juniper Street Trail by
signalizing the intersection
at Gilman Boulevard and
Three Trails
TR 038 Transportation Juniper Street. A developer,
Crossing 3,210,000
Seacon, is funding and
managing intersection
improvements on the
northern side of the project
area as part of the
development agreement.Future
Project Asset
Project Name Project Summary Year
Number Category
Costs
Widen the roadway and
install parking lanes, curb,
gutter, sidewalks, storm
drainage, irrigation, trees,
crosswalks, and traffic
calming devices for
East Sunset Way
TR 040 Transportation approximately 2,200 linear
Improvements 11,913,343
feet. Improvements also
include modifying existing
traffic signal and lane
geometry at Front Street,
adding a cycle track for
bicycle mobility.
This phase of the project
includes reconstruction of
Front Street sidewalks, addition of
TR 041 Transportation
Streetscape landscaping with irrigation, 400,000
and improvements to street
drainage.
These improvements will
complement the festive
Alder Festival
TR 042 Transportation lighting and street furniture
Street 1,500,000
planned for installation in
2021.
This project will construct a
NW Newport Way
12' wide shared use path
Multimodal
from Bellevue to the
TR 045 Improvements - Transportation
proposed shared use path 25,000,000
City Limits to SE
between SE 54th Street and
54th Street
SR 900.
West Lake This project will construct
Sammamish Pkwy bicycle and pedestrian
TR 047 Transportation
Multimodal improvements from Bellevue 25,000,000
Improvements to 193rd Pl SE.
This intersection was
identified in the 2017 SE
Black Nugget Road
Pedestrian Crossing Report
as a high vehicle accident
SE Black Nugget
intersection. An interim
TR 048 Road Intersection Transportation
solution of a mini- 618,000
Improvements
roundabout is recommended
to address traffic safety
based on the traffic analysis
of the existing land use in
the area.Future
Project Asset
Project Name Project Summary Year
Number Category
Costs
Add bicycle lanes on 220th
220th Avenue SE
TR 049 Transportation Ave SE between SE 51st
Bike Lanes 786,500
Street and SE 56th Street.
Construct a new two-lane
roadway with turn lanes at
11th Avenue NW intersections and wide
TR 050 Transportation
Improvements sidewalks, curb and gutter, 6,182,500
landscaping, streetlights,
and on-street parking.
10th Avenue NE Install signal phasing
TR 053 Transportation
and NE Park Drive improvements. 1,499,999
Construct a pedestrian and
East Lake
bicycle crossing at SE 56th
Sammamish Trail
TR 057 Transportation for the East Lake 18,000,000
Grade Separation
Sammamish Trail that
at SE 56th
intersects SE 56th
This project would expand
Mall Street NW Mall Street and the trail
Pedestrian system to connect Central
TR 059 Corridor 7th Transportation Issaquah and Olde Town,
10,000,000
Avenue NW to improving access to parks
Juniper and open spaces in and
around Central Issaquah.
Mall Street This improvement would add
TR 062 Pedestrian Transportation a pedestrian crossing on
18,000,000
Crossing Mall Street, over SR 900.
Intersection widening to
Newport Way and
provide exclusive eastbound
TR 067 Maple Intersection Transportation
right turn lane and 6,000,000
Improvements
northbound right turn lane.
This project will first be a
planning phase project to
Squak Mountain
determine the community's
TR 068 Multimodal Transportation
preferred alternative for 200,000
Improvements
bicycle and pedestrian
facilities on Squak Mountain.
Newport Way This project would construct
Multimodal a 12-foot-wide shared use
Improvements - path from 12th Avenue NW
TR 069 Transportation
12th Avenue NW to NW Maple Street as 8,000,000
to NW Maple identified in the Parks
Street Strategic Plan.You can also read
