US Bridges

Branscomb Road over Kenny Creek

Good

Mendocino County, California · 1.2 MI W/O Branscomb RD · Structure no. 10C0098

Built
1957
68 years old
Condition
Good
inspected August 2022
Type
Tee Beam
Prestressed Concrete
Length
42 ft
1 main span
Daily traffic
104
2011 count
Owner
County
County Highway Agency

About this bridge

Branscomb Road over Kenny Creek is a prestressed concrete tee beam carrying Branscomb Road over Kenny Creek in Mendocino County, California. It was built in 1957, so it is 68 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 104 vehicles a day, roughly 10% of them trucks, projected to reach 153 by 2039. The structure is 42 ft (12.8 m) long and 25 ft wide. If it were closed, the detour would be 95.7 mi (154 km).

CarriesBranscomb Road
CrossesKenny Creek
Location1.2 MI W/O Branscomb RD
RouteCounty Highway 0
Coordinates39.65999, -123.64029
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating94.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length42 ft (12.8 m)
Longest span40 ft (12.2 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic104 (2011)
Projected traffic153 by 2039
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed95.7 mi (154 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 Branscomb Road over Kenny Creek built?

It was built in 1957, making it 68 years old in 2025.

What condition is Branscomb Road over Kenny Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2022.

How much traffic does Branscomb Road over Kenny Creek carry?

About 104 vehicles per day (2011 count), of which roughly 10% are trucks.

How long is Branscomb Road over Kenny Creek?

The structure is 42 ft (12.8 m) long with a longest span of 40 ft (12.2 m) and a deck 25 ft wide.

Who owns Branscomb Road over Kenny Creek?

It is owned by the County Highway Agency.