- 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% |
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