US Bridges

Bonita RD over Sweetwater Riv Tributary

Good

San Diego County, California · 0.1MI S/O Central Ave · Structure no. 57C0498

Built
1972
53 years old
Condition
Good
inspected November 2024
Type
Culvert
Concrete
Length
40 ft
3 main spans
Daily traffic
21,220
2016 count
Owner
County
County Highway Agency

About this bridge

Bonita RD over Sweetwater Riv Tributary is a concrete culvert carrying Bonita RD over Sweetwater Riv Tributary in San Diego County, California. It was built in 1972, so it is 53 years old, younger 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 21,220 vehicles a day, roughly 1% of them trucks, projected to reach 21,519 by 2045. The structure is 40 ft (12.2 m) long and 60 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesBonita RD
CrossesSweetwater Riv Tributary
Location0.1MI S/O Central Ave
RouteCounty Highway 0
Coordinates32.66693, -117.02304
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadUnknown
Structure length40 ft (12.2 m)
Longest span10 ft (3 m)
Deck width60 ft (18.3 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,220 (2016)
Projected traffic21,519 by 2045
Trucks1%
Lanes on structure3
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 Bonita RD over Sweetwater Riv Tributary built?

It was built in 1972, making it 53 years old in 2025.

What condition is Bonita RD over Sweetwater Riv Tributary 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 November 2024.

How much traffic does Bonita RD over Sweetwater Riv Tributary carry?

About 21,220 vehicles per day (2016 count), of which roughly 1% are trucks.

How long is Bonita RD over Sweetwater Riv Tributary?

The structure is 40 ft (12.2 m) long with a longest span of 10 ft (3 m) and a deck 60 ft wide.

Who owns Bonita RD over Sweetwater Riv Tributary?

It is owned by the County Highway Agency.