US Bridges

Shaffer Road over Escaladian Canal

Fair

Merced County, California · 0.3 MI S Shaw Ave · Structure no. 39C0087

Built
1991
34 years old
Condition
Fair
inspected January 2023
Type
Culvert
Concrete Continuous
Length
22 ft
2 main spans
Daily traffic
900
1990 count
Owner
County
County Highway Agency

About this bridge

Shaffer Road over Escaladian Canal is a concrete continuous culvert carrying Shaffer Road over Escaladian Canal in Merced County, California. It was built in 1991, so it is 34 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 900 vehicles a day, roughly 3% of them trucks, projected to reach 1,658 by 2045. The structure is 22 ft (6.7 m) long and 47 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesShaffer Road
CrossesEscaladian Canal
Location0.3 MI S Shaw Ave
RouteCounty Highway 0
CountyMerced County
StateCalifornia
Coordinates37.42139, -120.59455
Functional classRural Minor Collector

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 protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior 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
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length22 ft (6.7 m)
Longest span10 ft (3 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic900 (1990)
Projected traffic1,658 by 2045
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Shaffer Road over Escaladian Canal built?

It was built in 1991, making it 34 years old in 2025.

What condition is Shaffer Road over Escaladian Canal 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 January 2023.

How much traffic does Shaffer Road over Escaladian Canal carry?

About 900 vehicles per day (1990 count), of which roughly 3% are trucks.

How long is Shaffer Road over Escaladian Canal?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m) and a deck 47 ft wide.

Who owns Shaffer Road over Escaladian Canal?

It is owned by the County Highway Agency.