Mason County, WA
139 public highway bridges
Mason County Bridge Snapshot
Mason County, Washington contains 139 public highway bridges in the FHWA National Bridge Inventory. Roughly 49.6% are rated “Good,” 38.8% “Fair,” 3.6% “Poor,” and 3.6% 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.
Condition Distribution
All Bridges (139)
US 101
FairOver: CREEK/RR/STREET
3.1 S JCT SR 102, Mason, WA
US 101
FairOver: KENNEDY CREEK
2.7 S JCT SR 108, Mason, WA
US 101
FairOver: KENNEDY CREEK
2.7 S JCT SR 108, Mason, WA
US 101
FairOver: SKOOKUM CR NP RY
0.3 S JCT SR 108, Mason, WA
US 101
FairOver: SKOOKUM CR NP RY
0.3 S JCT SR 108, Mason, WA
SR 119
FairOver: BIG CREEK
9.4 N JCT SR 101, Mason, WA
Old Olympic Highwa
FairOver: KENNEDY CREEK
0.40 S JCT SR 101, Mason, WA
NO DATA ENTERED
FairOver: JEFFERSON CREEK
NO DATA ENTERED, Mason, WA
US 101
FairOver: JORSTED CREEK
6.8 S JEFFERSON CO, Mason, WA
NO DATA ENTERED
FairOver: CHURCH CREEK
NO DATA ENTERED, Mason, WA
Shelton Matlock Rd
FairOver: NO. FORK GOLDSBOROUGH CK
0.23 E Dayton Airport rd, Mason, WA
E. Mason Lake Rd W
FairOver: SCHUMOCHER CREEK
0.73 MI NO OF Mason LK Rd, Mason, WA
NO DATA ENTERED
FairOver: TRIB. TO CANYON RIVER
NO DATA ENTERED, Mason, WA
NO DATA ENTERED
FairOver: ROCK CK.
NO DATA ENTERED, Mason, WA
NO DATA ENTERED
FairOver: SNOW CREEK
NO DATA ENTERED, Mason, WA
Eckert Road
GoodOver: CASE INLET
0.15 E Grapeview Loop rd, Mason, WA
US 101
GoodOver: HAMMA HAMMA RIVER
5.3 S JEFFERSON CO, Mason, WA
Skokomish ValleyRd
GoodOver: VANCE CREEK
3.88 W JCT SR 101, Mason, WA
Shelton Matlock Rd
GoodOver: GOLDSBOROUGH CREEK
4.85 W JCT SR 3, Mason, WA
Little Egypt Rd
GoodOver: SO. FK. GOLDSBOROUGH CK.
1.86 S SheltonMatlock Rd, Mason, WA
Deckerville Road
GoodOver: DRY BED CREEK
0.59 W JCT Matlock, Mason, WA
SR 3
GoodOver: DEER CREEK
9.0 N JCT US 101, Mason, WA
Mission Creek Rd
GoodOver: MISSION CREEK
0.40 N JCT SR 300, Mason, WA
Skokomish Valley R
GoodOver: VANCE CREEK
4.58 W JCT SR101, Mason, WA
US 101
GoodOver: MILL CREEK
4.9 S JCT SR 102, Mason, WA
Skokomish Valley R
GoodOver: VANCE CREEK
6.19 m W SR 101, Mason, WA
Shelton Matlock Rd
GoodOver: BINGHAM CREEK
1.3 E MATLOCK, Mason, WA
Beeville Road
GoodOver: DRY BED CREEK
4 Miles N of Matlock, Mason, WA
Old Belfair Highwa
GoodOver: UNION RIVER
1.19 N JCT SR 300, Mason, WA
Schaffer St Prk Rd
GoodOver: DECKER CREEK
0.59 E JCT MatlockBrady, Mason, WA
US 101
GoodOver: EAGLE CR
10.1 S JEFFERSON CO, Mason, WA
7TH AVENUE
GoodOver: GOLDSBROUGH CREEK
00.1 S RAILROAD AVE, Mason, WA
BEEVILLE LOOP
GoodOver: RABBIT CREEK
BEEVILLE LOOP, Mason, WA
NO DATA ENTERED
GoodOver: WALTER CREEK
NO DATA ENTERED, Mason, WA
NO DATA ENTERED
GoodOver: PINE CREEK
NO DATA ENTERED, Mason, WA
US 101
GoodOver: FINCH CREEK
17.1 S JEFFERSON CO, Mason, WA
NO DATA ENTERED
GoodOver: LAKE CUSHMAN (N FK SKOK)
N.W. END OF LAKE CUSHMAN, Mason, WA
NO DATA ENTERED
GoodOver: BAKER CREEK
NO DATA ENTERED, Mason, WA
NO DATA ENTERED
GoodOver: JEFFERSON CREEK
NO DATA ENTERED, Mason, WA
US 101
GoodOver: WEAVER CREEK
2.1 S JCT SR 106, Mason, WA
NO DATA ENTERED
GoodOver: LAKE CUSHMAN (N FK SKOK)
N.W. END OF LAKE CUSHMAN, Mason, WA
SR 106
GoodOver: TWANOH CREEK
12.3 E JCT US 101, Mason, WA
NO DATA ENTERED
GoodOver: BROWN CREEK
NO DATA ENTERED, Mason, WA
SHELTON-MATLOCK RD
GoodOver: COFFEE CREEK
3.6 S JCT SR 102, Mason, WA
NO DATA ENTERED
GoodOver: LEBAR CREEK
NO DATA ENTERED, Mason, WA
Skokomish ValleyRD
GoodOver: HUNTER CREEK
1.76 W JCT SR 101, Mason, WA
US 101 S-N RAMP
GoodOver: WETLAND
5.7 S JCT SR 102, Mason, WA
Schaffer Park Rd
GoodOver: EAST FORK SATSOP RIVER
1.29 E Matlock Brady rd, Mason, WA
BEAR CR - DEWATTO
GoodOver: DEWATTO RIVER
9.56 W OF BELFAIR HWY, Mason, WA
Deegan Road West
GoodOver: Coffee Creek
2.35 E Shelton Matlock Rd, Mason, WA
Read our methodology — how this data is sourced, computed, and verified.
Related
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |