Trinity County, CA
194 public highway bridges
Trinity County Bridge Snapshot
Trinity County, California contains 194 public highway bridges in the FHWA National Bridge Inventory. Roughly 56.2% are rated “Good,” 39.7% “Fair,” 4.1% “Poor,” and 4.1% 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 CA 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 (194)
BEAR WALLOW
FairOver: N.FORK RATTLESNAKE CREEK
NO DATA ENTERED, Trinity, CA
MOORES
FairOver: GLEN CREEK
OLD FOREST GLEN STATION, Trinity, CA
RUSCH CREEK ROAD
FairOver: RUSCH CREEK
NO DATA ENTERED, Trinity, CA
SMITH CREEK
FairOver: BAKER CREEK
NO DATA ENTERED, Trinity, CA
FAWN LODGE ROAD
FairOver: GRASS VALLEY CREEK
0.1 MI NORTH OF SR 299, Trinity, CA
BLANCHARD FLAT RD
FairOver: REDDING CREEK
3.9 MI S/O SR 3, Trinity, CA
BROWNS MOUNTAIN RD
FairOver: LITTLE BROWNS CREEK
0.1 MI E LITLE BRWN CK RD, Trinity, CA
POWERHOUSE ROAD
FairOver: CANYON CREEK
0.7 MI NORTH OF SR 299, Trinity, CA
SOUTH FORK ROAD
FairOver: PELLETREAU CREEK
2.3 MI N HYAMPOM RD, Trinity, CA
PRICE CK CMPBEL RD
FairOver: PRICE CREEK
PATTERSON RANCH ROAD, Trinity, CA
GUY COVINGTON DR
FairOver: E FORK OF STUARTS FORK
0.7 MI SE OF STATE RTE 3, Trinity, CA
COFFEE CREEK ROAD
FairOver: UNION CREEK
12.1 MI W/O S.R. 3, Trinity, CA
EAST FORK ROAD
FairOver: E FK OF N FK TRINITY RIV
4.4 MI NORTH OF SR 299, Trinity, CA
STATE ROUTE 3
FairOver: STUART FORK
02-TRI-003-43.93, Trinity, CA
13 DIPS ROAD
FairOver: SALT CREEK
1.2 MI EAST OF S.R. 3, Trinity, CA
B-BAR-K ROAD
FairOver: BROWNS CREEK
2.9 MI NW OF SR 3, Trinity, CA
BIG CREEK ROAD
FairOver: BIG CREEK
4.5 MI NORTH OF S.R. 3, Trinity, CA
COFFEE CREEK ROAD
FairOver: SOUTH FORK COFFEE CREEK
14.5 MI W OF STATE RTE 3, Trinity, CA
FOREST AVENUE
FairOver: SYDNEY GULCH
0.2 MI SOUTH OF SR 299, Trinity, CA
SOUTH FORK ROAD
FairOver: BIG CREEK
4.8 MI N HYAMPOM RD, Trinity, CA
DENNY ROAD
FairOver: TRINITY RIVER
0.2 MI E JCT SR 299, Trinity, CA
LORENZ STREET
FairOver: MIDDLE WEAVER CREEK
100 FT S OF SR 299, Trinity, CA
RUTH-ZENIA ROAD
FairOver: VAN DUZEN RIVER
HETTENSHAW ROAD, Trinity, CA
STATE ROUTE 3
FairOver: MULE CREEK
02-TRI-003-48.53, Trinity, CA
VAN DUZEN ROAD
FairOver: CEDAR CREEK
12.5 MI SOUTH SR 36, Trinity, CA
WILDWOOD-MAD RIVER
FairOver: E FK SO FK TRINITY RIVER
NO DATA ENTERED, Trinity, CA
STATE ROUTE 299
FairOver: GRAY CREEK
02-TRI-299-6.33, Trinity, CA
STATE ROUTE 3
FairOver: SCORPION CREEK
02-TRI-003-68.95, Trinity, CA
STATE ROUTE 3
FairOver: TRINITY RIVER
02-TRI-003-69.63, Trinity, CA
CANYON CREEK ROAD
FairOver: CLEAR GULCH
1.4 MI NE SR 299 JCT CITY, Trinity, CA
STATE ROUTE 299
FairOver: WEAVER CREEK
02-TRI-299-56.50, Trinity, CA
STATE ROUTE 36
FairOver: RATTLESNAKE CREEK
02-TRI-036-19.06, Trinity, CA
EAST FK HAYFORK RD
FairOver: EAST FORK HAYFORK CREEK
1.8 MI E WILDWOOD ROAD, Trinity, CA
STATE ROUTE 3
FairOver: SALT CREEK
02-TRI-003-L3.84, Trinity, CA
SOUTH FORK ROAD
FairOver: SOUTH FORK TRINITY RIVER
0.5 MI W HYAMPOM RD, Trinity, CA
EAGLE CRK LOOP RD
FairOver: MINNEHAHA CREEK
3 MI N OF COFFEE CRK RD, Trinity, CA
SWIFT CREEK ROAD
FairOver: NORTH FORK SWIFT CREEK
1.0 MI W OF STATE RTE 3, Trinity, CA
STATE ROUTE 299
FairOver: CANYON CREEK
02-TRI-299-43.36, Trinity, CA
LEWISTON ROAD
FairOver: GRASS VALLEY CREEK
1.4 MI NORTH OF SR 299, Trinity, CA
EAST SIDE ROAD
FairOver: EAST FORK TRINITY RIVER
7.8 MI SOUTHEAST OF SR 3, Trinity, CA
STATE ROUTE 299
FairOver: GRASS VALLEY CREEK
02-TRI-299-65.80, Trinity, CA
STATE ROUTE 3
FairOver: BIG CREEK
02-TRI-003-9.24, Trinity, CA
STATE ROUTE 3
FairOver: TRINITY RIVER
02-TRI-003-70.92, Trinity, CA
STATE ROUTE 3
FairOver: TRINITY RIVER
02-TRI-003-75.82, Trinity, CA
STATE ROUTE 3
FairOver: SCOTT MOUNTAIN CREEK
02-TRI-003-T80.67, Trinity, CA
STATE ROUTE 299
FairOver: TRINITY RIVER
02-TRI-299-R3.16, Trinity, CA
SALYER LOOP ROAD
FairOver: TRINITY RIVER
0.1 MI N OF SR 299, Trinity, CA
OAK AVE
FairOver: HAYFORK CREEK
0.39 MI S SR3, Trinity, CA
WILDWOOD ROAD
FairOver: HAYFORK CREEK
2.7 MI N OF SR 36, Trinity, CA
EAGLE CRK LOOP RD
FairOver: EAGLE CREEK
NEAR RAMSHORN ROAD, Trinity, CA
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 |