Thurston County, WA

216 public highway bridges

Thurston County Bridge Snapshot

Thurston County, Washington contains 216 public highway bridges in the FHWA National Bridge Inventory. Roughly 44.4% are rated “Good,” 30.1% “Fair,” 0.5% “Poor,” and 0.5% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in WA are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

216
Total Bridges
44.4%
Good
0.5%
Poor
0.5%
Structurally Deficient

Condition Distribution

Good
44.4% (96)
Fair
30.1% (65)
Poor
0.5% (1)
SD
0.5% (1)

All Bridges (216)

183RD SW

Fair

Over: OVERFLOW CHANNEL

0.65 m E of Moon Rd, Thurston, WA

Built 1924 Load: 46.3 t ADT: 301

SARGENT ROAD

Fair

Over: SCATTER CREEK

.63 m N of 183rd, Thurston, WA

Built 1984 Load: 46.3 t ADT: 2,812

EVERGREEN PARKWAY

Fair

Over: MUD BAY ROAD

0.2 N JCT US 101, Thurston, WA

Built 1975 Load: 47.2 t ADT: 6,090

GOEBEL RD SE

Fair

Over: SKOOKUMCHUCK RIVER

0.11 m N Skookumchuck Rd, Thurston, WA

Built 1982 Load: 50.8 t ADT: 27

THOMPSON CREEK RD.

Fair

Over: THOMPSON CREEK

0.12 m S Skookumchuck Rd, Thurston, WA

Built 1987 Load: 51.7 t ADT: 89

110TH AVE SW

Fair

Over: BLACK RIVER

0.75 W Littlerock Rd, Thurston, WA

Built 1986 Load: 52.6 t ADT: 2,339

GIBSON ROAD SW

Fair

Over: SCATTER CREEK

0.14 mile North of Hwy 99, Thurston, WA

Built 1967 Load: 52.6 t ADT: 535

US 101

Fair

Over: PERCIVAL CR & BNRR

4.5 S JCT SR 8, Thurston, WA

Built 1995 Load: 53.5 t ADT: 37,225

CASE ROAD

Fair

Over: BEAVER CREEK

0.5 m S Maytown Rd, Thurston, WA

Built 1970 Load: 53.5 t ADT: 3,040

PENINSULA DRIVE

Fair

Over: ST.CLAIR LAKE

.1 m NW St Cl Dr, Thurston, WA

Built 1963 Load: 54.4 t ADT: 329

RICH ROAD

Fair

Over: SPURGEON CREEK

0.61 EAST OF OLD HWY 99, Thurston, WA

Built 2012 Load: 54.4 t ADT: 3,843

OLD HWY 99 SW

Fair

Over: SCATTER CREEK

3. NE JCT I5, Thurston, WA

Built 1923 Load: 55.3 t ADT: 7,789

US 101

Fair

Over: PERRY CR

0.6 S JCT SR 8, Thurston, WA

Built 1957 Load: 66.2 t ADT: 25,346

SKOOKUMCHUCK ROAD

Fair

Over: SKOOKUMCHUCK RIVER

2.3 SE JCT SR507, Thurston, WA

Built 1984 Load: 66.2 t ADT: 981

W 4th Avenue

Fair

Over: Fill Slope

4th Avenue, Thurston, WA

Built 2004 Load: 67.7 t ADT: 20,060

OLD HWY 101

Fair

Over: SCHNEIDER CR

150' SE of Whittaker Rd, Thurston, WA

Built 1995 Load: 72.6 t ADT: 3,915

HAWKS PRAIRIE ROAD

Fair

Over: WOODLAND CREEK

150 ft S Johnson Point Rd, Thurston, WA

Built 1955 Load: 72.6 t ADT: 5,737

RW JOHNSON RD

Fair

Over: BLACK LAKE DRAIN DITCH

0.11 S 21ST AVE, Thurston, WA

Built 2003 Load: 82.9 t ADT: 5,120

US 101

Fair

Over: BLACK LAKE BLVD

3.9 S JCT SR 8, Thurston, WA

Built 1995 Load: 89.8 t ADT: 45,840

PARK ACCESS RD

Good

Over: EAST BAY DRIVE NE

PRIEST POINT PK, Thurston, WA

Built 1972 Load: 10.4 t ADT: 600

SR 507

Good

Over: WEYERHAEUSER RR, VACATED

15.7 N LEWIS CO, Thurston, WA

Built 1971 Load: 17.5 t ADT: 5,063

WADDELL CREEK ROAD

Good

Over: WADDELL CREEK

1.24 m N of 128th Ave SW, Thurston, WA

Built 1969 Load: 19.0 t ADT: 1,164

I-5

Good

Over: CAPITOL LAKE

0.5 N JCT US 101, Thurston, WA

Built 1956 Load: 19.4 t ADT: 99,802

SR 121

Good

Over: BEAVER CREEK

0.2 E JCT I-5, Thurston, WA

Built 1955 Load: 22.7 t ADT: 2,309

SR 507

Good

Over: CENTRALIA POWER CANAL

2.3 N JCT SR 510, Thurston, WA

Built 1954 Load: 24.5 t ADT: 21,833

DESCHUTES PARKWAY

Good

Over: PERCIVAL CREEK

1.2 M N US 101, Thurston, WA

Built 1952 Load: 24.5 t ADT: 8,500

SR 121

Good

Over: BEAVER CREEK

0.6 E JCT I-5, Thurston, WA

Built 1973 Load: 24.9 t ADT: 1,736

BOULEVARD ROAD

Good

Over: TRAIL & CREEK

.05 S I5, Thurston, WA

Built 1973 Load: 30.5 t ADT: 9,640

US 12

Good

Over: NP RY

6.1 E GRAYS HBR CO, Thurston, WA

Built 1964 Load: 31.1 t ADT: 13,012

WOODARD BAY

Good

Over: WALKING TRAIL

0.3 m W Shinkle Rd, Thurston, WA

Built 1958 Load: 31.7 t ADT: 1,137

US 12

Good

Over: OVERFLOW CHANNEL

0.4 E GRAYS HBR CO, Thurston, WA

Built 1981 Load: 32.7 t ADT: 8,291

OLD HWY 410

Good

Over: PERRY CREEK

PARALLEL SR101, Thurston, WA

Built 1937 Load: 32.7 t ADT: 587

Park Road

Good

Over: Seasonal Creek

1.0 mi. west of SR 121, Thurston, WA

Built 2014 Load: 32.8 t ADT: 75

Park Road

Good

Over: Creek

0.8 mi. west of SR 121, Thurston, WA

Built 2023 Load: 32.8 t ADT: 75

DELPHI ROAD

Good

Over: DEMPSEY CREEK

2. SW BLACK LAKE, Thurston, WA

Built 1995 Load: 33.4 t ADT: 4,432

MEADOWS ROAD

Good

Over: OVERFLOW CHANNEL

0.1 m SW of Prather Rd, Thurston, WA

Built 1995 Load: 33.6 t ADT: 12

HUNTER POINT RD NW

Good

Over: UNAMED CREEK

0.25 m W of Steamboat Rd, Thurston, WA

Built 2018 Load: 33.6 t ADT: 387

JONES ROAD

Good

Over: SALMON CREEK

0.47 m S of 93rd Ave SW, Thurston, WA

Built 2020 Load: 33.6 t ADT: 659

I-5

Good

Over: LINWOOD AVE

4.0 N JCT SR 121, Thurston, WA

Built 1955 Load: 34.5 t ADT: 104,017

CONNOR ROAD

Good

Over: SKOOKUMCHUCK RIVER

.03 E JCT SR507, Thurston, WA

Built 1989 Load: 34.5 t ADT: 152

S-PLUM RAMP

Good

Over: EASTSIDE ST SE

1.2 N JCT US 101, Thurston, WA

Built 1957 Load: 35.0 t ADT: 5,737

I-5

Good

Over: MCALLISTER CR

2.2 N JCT SR 510, Thurston, WA

Built 1968 Load: 35.0 t ADT: 2,132

US 101

Good

Over: SCHNEIDER CREEK

2.7 S MASON CO, Thurston, WA

Built 1958 Load: 35.4 t ADT: 13,023

TROY AVE SE

Good

Over: OCONNER CREEK

125' W of HWY 507, Thurston, WA

Built 2018 Load: 35.4 t ADT: 20

RESERVATION ROAD

Good

Over: RAIL ROAD

0.4 m S Old Pacific Hwy, Thurston, WA

Built 1993 Load: 36.3 t ADT: 8,901

FLUMERFELT ROAD

Good

Over: OCONNER CREEK

0.24 m W of Oconner Rd, Thurston, WA

Built 2018 Load: 36.3 t ADT: 140

I-5

Good

Over: SCATTER CREEK

2.0 N JCT US 12, Thurston, WA

Built 2010 Load: 37.2 t ADT: 66,693

OLD PACIFIC HWY

Good

Over: NISQUALLY RIVER

PIERCE CO LINE, Thurston, WA

Built 1998 Load: 37.2 t ADT: 13,122

PEISSNER RD

Good

Over: ELBOW LAKE CREEK

Peissner Rd at County End, Thurston, WA

Built 2020 Load: 37.2 t ADT: 240

Latigo Street

Good

Over: Spurgeon Creek

0.15 m S of 89th Ave SE, Thurston, WA

Built 2022 Load: 37.3 t ADT: 40

Read our methodology — how this data is sourced, computed, and verified.

Related

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial