US Bridges

Cohasset RD over Sycamore Creek Tributary

Good

Butte County, California · 0.7 MI N/O Eaton RD · Structure no. 12C0422

Built
2008
17 years old
Condition
Good
inspected October 2024
Type
Slab
Concrete Continuous
Length
91 ft
3 main spans
Daily traffic
10,300
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

Cohasset RD over Sycamore Creek Tributary is a concrete continuous slab carrying Cohasset RD over Sycamore Creek Tributary in Butte County, California. It was built in 2008, so it is 17 years old, younger 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 10,300 vehicles a day, roughly 3% of them trucks, projected to reach 15,927 by 2046. The structure is 91 ft (27.8 m) long and 79 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesCohasset RD
CrossesSycamore Creek Tributary
Location0.7 MI N/O Eaton RD
RouteCity Street 0
Coordinates39.7866, -121.84387
Functional classUrban Minor Arterial

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 protection9 ExcellentNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length91 ft (27.8 m)
Longest span36 ft (11 m)
Deck width79 ft (24 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,300 (2018)
Projected traffic15,927 by 2046
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Cohasset RD over Sycamore Creek Tributary built?

It was built in 2008, making it 17 years old in 2025.

What condition is Cohasset RD over Sycamore Creek Tributary 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 October 2024.

How much traffic does Cohasset RD over Sycamore Creek Tributary carry?

About 10,300 vehicles per day (2018 count), of which roughly 3% are trucks.

How long is Cohasset RD over Sycamore Creek Tributary?

The structure is 91 ft (27.8 m) long with a longest span of 36 ft (11 m) and a deck 79 ft wide.

Who owns Cohasset RD over Sycamore Creek Tributary?

It is owned by the City or Municipal Highway Agency.