US Bridges

Zenith St. over Otay River Tributary

Fair

San Diego County, California · 20 Ft W/O Fresno ST · Structure no. 57C0848

Built
1984
41 years old
Condition
Fair
inspected May 2022
Type
Culvert
Concrete Continuous
Length
20 ft
2 main spans
Daily traffic
37,800
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Zenith St. over Otay River Tributary is a concrete continuous culvert carrying Zenith St. over Otay River Tributary in San Diego County, California. It was built in 1984, so it is 41 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 37,800 vehicles a day, roughly 2% of them trucks, projected to reach 67,700 by 2040. The structure is 20 ft (6.2 m) long and 52 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesZenith St.
CrossesOtay River Tributary
Location20 Ft W/O Fresno ST
Coordinates32.59576, -117.06687
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 inspectionMay 2022
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 adequacy8: Equal 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 loadH 20
Structure length20 ft (6.2 m)
Longest span10 ft (3 m)
Deck width52 ft (15.8 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic37,800 (2020)
Projected traffic67,700 by 2040
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Zenith St. over Otay River Tributary built?

It was built in 1984, making it 41 years old in 2025.

What condition is Zenith St. over Otay River Tributary 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 May 2022.

How much traffic does Zenith St. over Otay River Tributary carry?

About 37,800 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Zenith St. over Otay River Tributary?

The structure is 20 ft (6.2 m) long with a longest span of 10 ft (3 m) and a deck 52 ft wide.

Who owns Zenith St. over Otay River Tributary?

It is owned by the City or Municipal Highway Agency.