US Bridges

Mountain Ave over Stoddard Creek

Fair

San Bernardino County, California · 0.4 MI E La-Sbd CO Line · Structure no. 54C0351

Built
1977
48 years old
Condition
Fair
inspected November 2022
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
1,500
2017 count
Owner
County
County Highway Agency

About this bridge

Mountain Ave over Stoddard Creek is a concrete culvert carrying Mountain Ave over Stoddard Creek in San Bernardino County, California. It was built in 1977, so it is 48 years old, younger 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 6 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 1,500 vehicles a day, roughly 1% of them trucks, projected to reach 1,900 by 2039. The structure is 25 ft (7.6 m) long and 44 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesMountain Ave
CrossesStoddard Creek
Location0.4 MI E La-Sbd CO Line
RouteCounty Highway 0
CountySan Bernardino County
StateCalifornia
Coordinates34.17307, -117.67421
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width44 ft (13.4 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deck25 ft (7.6 m)

Traffic and service

Average daily traffic1,500 (2017)
Projected traffic1,900 by 2039
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 Mountain Ave over Stoddard Creek built?

It was built in 1977, making it 48 years old in 2025.

What condition is Mountain Ave over Stoddard 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 November 2022.

How much traffic does Mountain Ave over Stoddard Creek carry?

About 1,500 vehicles per day (2017 count), of which roughly 1% are trucks.

How long is Mountain Ave over Stoddard Creek?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m) and a deck 44 ft wide.

Who owns Mountain Ave over Stoddard Creek?

It is owned by the County Highway Agency.