US Bridges

Elm Avenue over Patterson Id Main Canal

Good

Stanislaus County, California · 0.2 MI S Las Palmas · Structure no. 38C0184

Built
1925
100 years old
Condition
Good
inspected February 2024
Type
Slab
Concrete Continuous
Length
27 ft
2 main spans
Daily traffic
960
2017 count
Owner
County
County Highway Agency

About this bridge

Elm Avenue over Patterson Id Main Canal is a concrete continuous slab carrying Elm Avenue over Patterson Id Main Canal in Stanislaus County, California. It was built in 1925, so it is 100 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 960 vehicles a day, roughly 16% of them trucks, projected to reach 1,200 by 2042. The structure is 27 ft (8.2 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesElm Avenue
CrossesPatterson Id Main Canal
Location0.2 MI S Las Palmas
RouteCounty Highway 0
Coordinates37.48401, -121.0947
Functional classRural 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 protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating29.7 US tons
Inventory rating17.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length27 ft (8.2 m)
Longest span10 ft (3 m)
Deck width26 ft (8 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic960 (2017)
Projected traffic1,200 by 2042
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Elm Avenue over Patterson Id Main Canal built?

It was built in 1925, making it 100 years old in 2025.

What condition is Elm Avenue over Patterson Id Main Canal 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 February 2024.

How much traffic does Elm Avenue over Patterson Id Main Canal carry?

About 960 vehicles per day (2017 count), of which roughly 16% are trucks.

How long is Elm Avenue over Patterson Id Main Canal?

The structure is 27 ft (8.2 m) long with a longest span of 10 ft (3 m) and a deck 26 ft wide.

Who owns Elm Avenue over Patterson Id Main Canal?

It is owned by the County Highway Agency.