US Bridges

Coloma Way over Cirby Creek

Good

Placer County, California · 0.1 MI E Sunrise Ave · Structure no. 19C0181

Built
1968
57 years old
Condition
Good
inspected June 2024
Type
Slab
Concrete
Length
31 ft
1 main span
Daily traffic
3,200
2003 count
Owner
City
City or Municipal Highway Agency

About this bridge

Coloma Way over Cirby Creek is a concrete slab carrying Coloma Way over Cirby Creek in Placer County, California. It was built in 1968, so it is 57 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 3,200 vehicles a day, roughly 2% of them trucks, projected to reach 2,136 by 2042. The structure is 31 ft (9.4 m) long and 49 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesColoma Way
CrossesCirby Creek
Location0.1 MI E Sunrise Ave
RouteCity Street 0
Coordinates38.73674, -121.26992
Functional classUrban Local

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.2 US tons
Inventory rating37.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span30 ft (9.1 m)
Deck width49 ft (14.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,200 (2003)
Projected traffic2,136 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 Coloma Way over Cirby Creek built?

It was built in 1968, making it 57 years old in 2025.

What condition is Coloma Way over Cirby 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 June 2024.

How much traffic does Coloma Way over Cirby Creek carry?

About 3,200 vehicles per day (2003 count), of which roughly 2% are trucks.

How long is Coloma Way over Cirby Creek?

The structure is 31 ft (9.4 m) long with a longest span of 30 ft (9.1 m) and a deck 49 ft wide.

Who owns Coloma Way over Cirby Creek?

It is owned by the City or Municipal Highway Agency.