US Bridges

Center Valley RD over Haehl Creek

Fair

Mendocino County, California · 0.9 MI E SH 101 · Structure no. 10C0170

Built
1953
72 years old
Condition
Fair
inspected September 2023
Type
Tee Beam
Concrete
Length
37 ft
1 main span
Daily traffic
1,166
2011 count
Owner
County
County Highway Agency

About this bridge

Center Valley RD over Haehl Creek is a concrete tee beam carrying Center Valley RD over Haehl Creek in Mendocino County, California. It was built in 1953, so it is 72 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 1,166 vehicles a day, roughly 2% of them trucks, projected to reach 655 by 2041. The structure is 37 ft (11.3 m) long and 25 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCenter Valley RD
CrossesHaehl Creek
Location0.9 MI E SH 101
RouteCounty Highway 0
CountyMendocino County
StateCalifornia
Coordinates39.4096, -123.33951
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34 US tons
Inventory rating26.1 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length37 ft (11.3 m)
Longest span34 ft (10.4 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,166 (2011)
Projected traffic655 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Center Valley RD over Haehl Creek built?

It was built in 1953, making it 72 years old in 2025.

What condition is Center Valley RD over Haehl 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 September 2023.

How much traffic does Center Valley RD over Haehl Creek carry?

About 1,166 vehicles per day (2011 count), of which roughly 2% are trucks.

How long is Center Valley RD over Haehl Creek?

The structure is 37 ft (11.3 m) long with a longest span of 34 ft (10.4 m) and a deck 25 ft wide.

Who owns Center Valley RD over Haehl Creek?

It is owned by the County Highway Agency.