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)
LONG RIDGE ROAD
FairOver: SALT CREEK
2 MI E JCT HOAGLIN RD, Trinity, CA
WILDWOOD ROAD
FairOver: HAYFORK CREEK
3.7 MI SOUTH OF S.R. 3, Trinity, CA
STATE ROUTE 3
FairOver: TRINITY RIVER
02-TRI-003-74.12, Trinity, CA
WILDWOOD ROAD
FairOver: CARR CREEK
0.1 MI E OF S.R. 3, Trinity, CA
RATTLESNAKE ROAD
FairOver: SALT CREEK
150' WEST OF S.R. 3, Trinity, CA
STATE ROUTE 3
FairOver: TANGLE BLUE CREEK
02-TRI-003-79.39, Trinity, CA
WEST VAN DUZEN RD
FairOver: VAN DUZEN RIVER
4.5 MI N OF ZENIA-RUTH RD, Trinity, CA
STATE ROUTE 36
FairOver: UPPER RATTLESNAKE CREEK
02-TRI-036-20.42, Trinity, CA
STATE ROUTE 299
FairOver: EAST WEAVER CREEK
02-TRI-299-52.13, Trinity, CA
RUTH DAM ROAD
FairOver: RUTH DAM
100' W MAD RIVER ROAD, Trinity, CA
CANYON CREEK ROAD
FairOver: CANYON CREEK
12.4 M N JUNCTION CITY, Trinity, CA
EAST HETTENSHAW RD
FairOver: VAN DUZEN RIVER
100' SOUTH RUTH-ZENIA RD, Trinity, CA
LITTLE BROWN CK RD
FairOver: LITTLE BROWNS CREEK
2.0 MI N/E S.R. 299, Trinity, CA
STATE ROUTE 299
FairOver: TRINITY RIVER
02-TRI-299-R58.00, Trinity, CA
EAST FORK ROAD
FairOver: POTATO CREEK
2.2 MI E WILDWOOD ROAD, Trinity, CA
STATE ROUTE 299
FairOver: GRASS VALLEY CREEK
02-TRI-299-65.45, Trinity, CA
TULE CREEK ROAD
FairOver: TULE CREEK
3.3 MI SW OF S.R. 3, Trinity, CA
TRINITY DAM BLVD
FairOver: TRINITY RIVER
.2 MI S/O RUSH CREEK RD, Trinity, CA
BROWNS MOUNTAIN RD
FairOver: TRINITY RIVER
0.3 MI W LEWISTON RD, Trinity, CA
STATE ROUTE 299
FairOver: INDIAN CREEK
02-TRI-299-59.68, Trinity, CA
UPPER MAD RIVER RD
FairOver: LITTLEFIELD CREEK
19.7 MI SOUTH OF S.R. 36, Trinity, CA
INDIAN CREEK ROAD
FairOver: INDIAN CREEK
3.3 MI W READING CRK RD, Trinity, CA
EAST FORK HYFK RD
FairOver: EAST FORK HAYFORK CREEK
3.7 MI E OF WILDWOOD ROAD, Trinity, CA
DUTCH CREEK ROAD
FairOver: TRINITY RIVER
0.3 MI S OF SR 299, Trinity, CA
SOUTH FORK ROAD
FairOver: KERLIN CREEK
3.8 MI N HYAMPOM RD, Trinity, CA
STATE ROUTE 3
FairOver: GRAVES CREEK
02-TRI-003-77.17, Trinity, CA
INDIAN CREEK ROAD
FairOver: INDIAN CREEK
6.9 MI E REDDING CREEK RD, Trinity, CA
NO DATA ENTERED
GoodOver: NO DATA ENTERED
S28 T27N R12W, Trinity, CA
WILDWOOD-MAD RIVER
GoodOver: DARK CANYON CREEK
NO DATA ENTERED, Trinity, CA
NO DATA ENTERED
GoodOver: BROWN'S CREEK
NO DATA ENTERED, Trinity, CA
LIMEDYKE LOOKOUT
GoodOver: INDIAN VALLEY CREEK
NO DATA ENTERED, Trinity, CA
BUTTER CREEK
GoodOver: BUTTER CREEK
NO DATA ENTERED, Trinity, CA
DOUBLE PLATE
GoodOver: POST CREEK
NO DATA ENTERED, Trinity, CA
PLUMMER PEAK
GoodOver: PHILPOT CREEK
NEAR PHILPOT CAMPGROUND, Trinity, CA
PHILPOT CAMPGROUND
GoodOver: NORTH FORK PHILPOT CREEK
PHILPOT CAMPGROUND, Trinity, CA
COUNTY LINE
GoodOver: BROWNS CREEK
NO DATA ENTERED, Trinity, CA
SOLDIER CR. ROAD
GoodOver: LIMESTONE CREEK
LIMESTONE CREEK, Trinity, CA
MAIN TULE CR. ROAD
GoodOver: TULE CREEK
NO DATA ENTERED, Trinity, CA
NO DATA ENTERED
GoodOver: SOLDIER CREEK
NO DATA ENTERED, Trinity, CA
PAPOOSE
GoodOver: PAPOOSE CREEK
NO DATA ENTERED, Trinity, CA
MULE CREEK
GoodOver: EAST FORK STUART FORK
NO DATA ENTERED, Trinity, CA
SWIFT CREEK
GoodOver: CEMENT CREEK
NO DATA ENTERED, Trinity, CA
SCORPION CREEK
GoodOver: NORTH FK. SCORPION CREEK
NO DATA ENTERED, Trinity, CA
SCORPION CREEK
GoodOver: SCORPION CREEK
NO DATA ENTERED, Trinity, CA
BOULDER LAKE
GoodOver: COFFEE CREEK
NO DATA ENTERED, Trinity, CA
E FORK NEW RIVER
GoodOver: NEW RIVER
NO DATA ENTERED, Trinity, CA
BOULDER LAKE
GoodOver: BOULDER CREEK
NO DATA ENTERED, Trinity, CA
WHALEN
GoodOver: CROW CREEK
NO DATA ENTERED, Trinity, CA
CEDAR CREEK
GoodOver: CEDAR CREEK
NO DATA ENTERED, Trinity, CA
HIGHLAND LAKES
GoodOver: EAST FORK TRINITY RIVER
NO DATA ENTERED, 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 |