US Bridges

Gilman Springs Rd. over Lamb Canyon Creek

Good

Riverside County, California · 1.0 Mi. Nw/O Route 79 HWY · Structure no. 56C0529

Built
2004
21 years old
Condition
Good
inspected July 2022
Type
Culvert
Concrete Continuous
Length
22 ft
2 main spans
Daily traffic
10,931
2016 count
Owner
County
County Highway Agency

About this bridge

Gilman Springs Rd. over Lamb Canyon Creek is a concrete continuous culvert carrying Gilman Springs Rd. over Lamb Canyon Creek in Riverside County, California. It was built in 2004, so it is 21 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 10,931 vehicles a day, roughly 1% of them trucks, projected to reach 17,267 by 2040. The structure is 22 ft (6.7 m) long and 66 ft wide. If it were closed, the detour would be 12.4 mi (20 km).

Location

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CarriesGilman Springs Rd.
CrossesLamb Canyon Creek
Location1.0 Mi. Nw/O Route 79 HWY
RouteCounty Highway 0
CountyRiverside County
StateCalifornia
Coordinates33.85514, -117.01718
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
Channel and channel protection9 ExcellentNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
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 typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length22 ft (6.7 m)
Longest span10 ft (3.1 m)
Deck width66 ft (20.2 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,931 (2016)
Projected traffic17,267 by 2040
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed12.4 mi (20 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Gilman Springs Rd. over Lamb Canyon Creek built?

It was built in 2004, making it 21 years old in 2025.

What condition is Gilman Springs Rd. over Lamb Canyon 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 July 2022.

How much traffic does Gilman Springs Rd. over Lamb Canyon Creek carry?

About 10,931 vehicles per day (2016 count), of which roughly 1% are trucks.

How long is Gilman Springs Rd. over Lamb Canyon Creek?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3.1 m) and a deck 66 ft wide.

Who owns Gilman Springs Rd. over Lamb Canyon Creek?

It is owned by the County Highway Agency.