US Bridges

State Route 253 over Anderson Creek

Fair

Mendocino County, California · 01-MEN-253-0.54 · Structure no. 10 0225

Built
1965
60 years old, rebuilt 2008
Condition
Fair
inspected May 2023
Type
Tee Beam
Concrete Continuous
Length
127 ft
3 main spans
Daily traffic
2,300
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 253 over Anderson Creek is a concrete continuous tee beam carrying State Route 253 over Anderson Creek in Mendocino County, California. It was built in 1965 and reconstructed in 2008, so it is 60 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 2,300 vehicles a day, roughly 14% of them trucks, projected to reach 3,367 by 2043. The structure is 127 ft (38.7 m) long and 34 ft wide. If it were closed, the detour would be 57.8 mi (93 km).

Location

Open in Google Maps
CarriesState Route 253
CrossesAnderson Creek
Location01-MEN-253-0.54
RouteState Highway 253
CountyMendocino County
StateCalifornia
Coordinates39.00012, -123.34909
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.8 US tons
Inventory rating29.3 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length127 ft (38.7 m)
Longest span50 ft (15.2 m)
Deck width34 ft (10.5 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,300 (2009)
Projected traffic3,367 by 2043
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed57.8 mi (93 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was State Route 253 over Anderson Creek built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 2008.

What condition is State Route 253 over Anderson Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2023.

How much traffic does State Route 253 over Anderson Creek carry?

About 2,300 vehicles per day (2009 count), of which roughly 14% are trucks.

How long is State Route 253 over Anderson Creek?

The structure is 127 ft (38.7 m) long with a longest span of 50 ft (15.2 m) and a deck 34 ft wide.

Who owns State Route 253 over Anderson Creek?

It is owned by the State Highway Agency.