US Bridges

New Jersey ST over Zanja Drainage Ditch

Fair

San Bernardino County, California · 0.6 MI N Barton RD · Structure no. 54C0429

Built
1969
56 years old
Condition
Fair
inspected September 2023
Type
Culvert
Concrete
Length
35 ft
2 main spans
Daily traffic
3,509
2015 count
Owner
County
County Highway Agency

About this bridge

New Jersey ST over Zanja Drainage Ditch is a concrete culvert carrying New Jersey ST over Zanja Drainage Ditch in San Bernardino County, California. It was built in 1969, so it is 56 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 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 3,509 vehicles a day, roughly 1% of them trucks, projected to reach 3,575 by 2042. The structure is 35 ft (10.7 m) long and 38 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesNew Jersey ST
CrossesZanja Drainage Ditch
Location0.6 MI N Barton RD
RouteCounty Highway 0
CountySan Bernardino County
StateCalifornia
Coordinates34.05629, -117.22171
Functional classUrban 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 protection9 ExcellentNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
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 rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length35 ft (10.7 m)
Longest span17 ft (5.1 m)
Deck width38 ft (11.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,509 (2015)
Projected traffic3,575 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 New Jersey ST over Zanja Drainage Ditch built?

It was built in 1969, making it 56 years old in 2025.

What condition is New Jersey ST over Zanja Drainage Ditch 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 September 2023.

How much traffic does New Jersey ST over Zanja Drainage Ditch carry?

About 3,509 vehicles per day (2015 count), of which roughly 1% are trucks.

How long is New Jersey ST over Zanja Drainage Ditch?

The structure is 35 ft (10.7 m) long with a longest span of 17 ft (5.1 m) and a deck 38 ft wide.

Who owns New Jersey ST over Zanja Drainage Ditch?

It is owned by the County Highway Agency.