US Bridges

Gilman Springs Rd. over Potrero Creek

Fair

Riverside County, California · 0.5 Mi. Se/O Sanderson Av · Structure no. 56C0523

Built
1926
99 years old, rebuilt 1949
Condition
Fair
inspected February 2024
Type
Slab
Concrete
Length
47 ft
1 main span
Daily traffic
19,252
2016 count
Owner
County
County Highway Agency

About this bridge

Gilman Springs Rd. over Potrero Creek is a concrete slab carrying Gilman Springs Rd. over Potrero Creek in Riverside County, California. It was built in 1926 and reconstructed in 1949, so it is 99 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 19,252 vehicles a day, roughly 25% of them trucks, projected to reach 12,741 by 2044. The structure is 47 ft (14.3 m) long and 39 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesGilman Springs Rd.
CrossesPotrero Creek
Location0.5 Mi. Se/O Sanderson Av
RouteCounty Highway 0
Coordinates33.84318, -116.99645
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating53.9 US tons
Inventory rating32.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length47 ft (14.3 m)
Longest span42 ft (12.8 m)
Deck width39 ft (12 m)
Roadway width34 ft (10.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,252 (2016)
Projected traffic12,741 by 2044
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemYes

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 Gilman Springs Rd. over Potrero Creek built?

It was built in 1926, making it 99 years old in 2025. It was reconstructed in 1949.

What condition is Gilman Springs Rd. over Potrero 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 February 2024.

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

About 19,252 vehicles per day (2016 count), of which roughly 25% are trucks.

How long is Gilman Springs Rd. over Potrero Creek?

The structure is 47 ft (14.3 m) long with a longest span of 42 ft (12.8 m) and a deck 39 ft wide.

Who owns Gilman Springs Rd. over Potrero Creek?

It is owned by the County Highway Agency.