Washington Congressional District 10


  • Of the 810 bridges in the counties of this district, 28, or 3.5 percent, are classified as structurally deficient. This means one of the key elements is in poor or worse condition.
  • This is up from 21 bridges classified as structurally deficient in 2020.
  • Repairs are needed on 764 bridges in the district, which will cost an estimated $2.0 billion.
  • This compares to 744 bridges that needed work in 2020.
  • The state has committed $209.0 thousand in IIJA bridge formula funds to support 1 project in the District.

Top Most Traveled Structurally Deficient Bridges in Washington

County Year Built Daily Crossings Type of Bridge Location
Pierce 1961 28,462 Urban other principal arterial SR 99 (54th Ave E) over I-5, Ramps
Pierce 1934 28,423 Urban other principal arterial SR 167 over BNSF RR
Pierce 1959 27,805 Urban other principal arterial Gravelly Lake Dr over BNRR (Np)
Pierce 1936 23,196 Urban other principal arterial SR 302 over Henderson Bay
Pierce 1973 19,549 Urban minor arterial Portland Ave over Puyallup Ave Nprr
Mason 1973 17,635 Urban freeway/expressway US 101 over Matlock Rd
Pierce 1925 15,256 Urban other principal arterial Fish War Mem X-Ing over Railroad
Pierce 1925 15,255 Urban other principal arterial Fish War Mem X-Ing over Puyallup River
Thurston 1956 13,767 Urban other principal arterial Capitol Blvd over I-5, Ramp
Pierce 1957 11,876 Urban minor arterial Steilacoom Dupont over I-5
Pierce 1956 9,533 Urban minor arterial SR 162 over S Prairie Cr
Thurston 1957 6,801 Urban Interstate Plum-N Ramp over Eastside St Se
Pierce 1954 5,525 Urban minor arterial Fox Islnd Br Rd NW over Hale Passage
Pierce 1927 4,905 Urban minor arterial Interlaaken Dr SW over Steilacoom Lake
Pierce 1937 4,700 Urban collector East 34th Street over Pacific to A St
Pierce 1955 3,000 Urban local road Barnes Blvd over Clover Creek
Pierce 1911 2,400 Urban minor arterial State Route 509 over Puyallup Waterway RR
Pierce 1958 2,330 Urban minor arterial Tacoma-Vashon Traf over Puget Sound
Mason 1969 2,155 Rural major collector Harstine Bridge Rd over Pickering Passage
Pierce 1931 1,786 Rural local road Sunrise Road over Fryingpan Creek
Mason 1995 1,050 Rural minor collector Bear Ck / Dewatto over Tahuya River
Pierce 1954 900 Urban collector Cramer Rd NW over Lockey Creek
Pierce 1950 200 Rural local road Sequalitchew Road over Sequalitchew Creek
Mason 1958 191 Rural local road Little Egypt Rd. over No. Fk. Goldsborough Ck.
Pierce 1958 100 Rural local road Perimeter Road over Clover Creek

Bridge Inventory: Washington

Type of Bridge Number of Bridges Area of All Bridges
(sq. meters)
Daily Crossings on All Bridges Number of Structurally Deficient Bridges Area of Structurally Deficient Bridges
(sq. meters)
Daily Crossings on Structurally Deficient Bridges
Rural Interstate 4 7,443 224,654 0 0 0
Rural arterial 32 13,720 287,621 0 0 0
Rural minor arterial 35 11,180 163,691 0 0 0
Rural major collector 98 45,840 241,098 1 4,066 2,155
Rural minor collector 51 14,829 45,911 1 70 1,050
Rural local road 141 29,085 75,433 6 1,061 2,364
Urban Interstate 82 188,924 4,053,110 1 179 6,801
Urban freeway/expressway 98 263,551 3,190,718 1 827 17,635
Urban other principal arterial 86 119,257 1,611,372 7 9,378 152,164
Urban minor arterial 97 102,937 993,247 7 15,470 56,118
Urban collector 46 39,667 205,998 2 1,649 5,600
Urban local road 40 13,944 40,764 2 308 3,001
Total 810 850,376 11,133,617 28 33,006 246,888

Proposed Bridge Work

Type of Work Number of Bridges Cost to Repair
(in millions)
Daily Crossings Area of Bridges
(sq. meters)
Bridge replacement 250 $430 1,116,718 127,394
Widening & rehabilitation 20 $40 206,535 17,601
Rehabilitation 382 $1,336 9,380,953 595,316
Deck rehabilitation/replacement 54 $124 251,557 53,933
Other structural work 58 $102 172,575 44,891
Total 764 $2,032 11,128,338 839,134

About the data:

Data includes information for the following area(s): Mason County, Pierce County, Thurston County

Data and cost estimates are from the Federal Highway Administration (FHWA) National Bridge Inventory (NBI), downloaded on August 20, 2024. Note that specific conditions on bridges may have changed as a result of recent work or updated inspections.

Effective January 1, 2018, FHWA changed the definition of structurally deficient as part of the final rule on highway and bridge performance measures, published May 20, 2017 pursuant to the 2012 federal aid highway bill Moving Ahead for Progress in the 21st Century Act (MAP-21). Two measures that were previously used to classify bridges as structurally deficient are no longer used. This includes bridges where the overall structural evaluation was rated in poor or worse condition, or where the adequacy of waterway openings was insufficient.

The new definition limits the classification to bridges where one of the key structural elements—the deck, superstructure, substructure or culverts, are rated in poor or worse condition. During inspection, the conditions of a variety of bridge elements are rated on a scale of 0 (failed condition) to 9 (excellent condition). A rating of 4 is considered “poor” condition.

Cost estimates have been derived by ARTBA, based on 2023 average bridge replacement costs for structures on and off the National Highway System, published by FHWA. Bridge rehabilitation costs are estimated to be 68 percent of replacement costs. A bridge is considered to need repair if the structure has identified repairs as part of the NBI, a repair cost estimate is supplied by the bridge owner or the bridge is classified as structurally deficient. Please note that for a few states, the number of bridges needing to be repaired can vary significantly from year to year, and reflects the data entered by the state.

Bridges are classified by FHWA into types based on the functional classification of the roadway on the bridge. Interstates comprise routes officially designated by the Secretary of Transportation. Other principal arterials serve major centers of urban areas or provide mobility through rural areas. Freeways and expressways have directional lanes generally separated by a physical barrier, and access/egress points generally limited to on- and off-ramps. Minor arterials serve smaller areas and are used for trips of moderate length. Collectors funnel traffic from local roads to the arterial network; major collectors have higher speed limits and traffic volumes and are longer in length and spaced at greater intervals, while minor collectors are shorter and provide service to smaller communities. Local roads do not carry through traffic and are intended for short distance travel.

29
Compared to 29 in 2023

in the nation in % of structurally deficient bridges

1. Iowa 19.0%
28. California 6.0%
29. Washington 6.0%
30. Arkansas 5.0%

29
Compared to 27 in 2023

in the nation in # of structurally deficient bridges

1. Iowa 4,544
28. North Dakota 467
29. Washington 462
30. Colorado 432

13
Compared to 12 in 2023

in the nation in % of structurally deficient bridge deck area

1. Rhode Island 14.0%
12. Missouri 8.0%
13. Washington 7.0%
14. Pennsylvania 7.0%
Full State Ranking

Advertisement


  • Source: Data is from the Federal Highway Administration (FHWA) National Bridge Inventory (NBI), downloaded on August 20, 2024. Note that specific conditions on bridges may have changed as a result of recent work or updated inspections.

    ARTBA is a non-partisan federation whose primary goal is to aggressively grow and protect transportation infrastructure investment to meet the public and business demand for safe and efficient travel.

  • Privacy & Cookies Policy
Connect With Us

Copyright © 2025 American Road & Transportation Builders Association