US Bridges

National Ave over Chollas Creek

Fair

San Diego County, California · 0.2MI E/O 32nd ST · Structure no. 57C0425

Built
1976
49 years old
Condition
Fair
inspected May 2024
Type
Slab
Concrete Continuous
Length
156 ft
4 main spans
Daily traffic
13,000
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

National Ave over Chollas Creek is a concrete continuous slab carrying National Ave over Chollas Creek in San Diego County, California. It was built in 1976, so it is 49 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 5 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 13,000 vehicles a day, roughly 2% of them trucks, projected to reach 21,447 by 2044. The structure is 156 ft (47.5 m) long and 76 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesNational Ave
CrossesChollas Creek
Location0.2MI E/O 32nd ST
RouteCity Street 0
CountySan Diego County
StateCalifornia
Coordinates32.69589, -117.12275
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.3 US tons
Inventory rating33.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length156 ft (47.5 m)
Longest span38 ft (11.6 m)
Deck width76 ft (23.2 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,000 (2022)
Projected traffic21,447 by 2044
Trucks2%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 National Ave over Chollas Creek built?

It was built in 1976, making it 49 years old in 2025.

What condition is National Ave over Chollas 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 May 2024.

How much traffic does National Ave over Chollas Creek carry?

About 13,000 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is National Ave over Chollas Creek?

The structure is 156 ft (47.5 m) long with a longest span of 38 ft (11.6 m) and a deck 76 ft wide.

Who owns National Ave over Chollas Creek?

It is owned by the City or Municipal Highway Agency.