US Bridges

Bonita Road over Sweetwater River

Good

San Diego County, California · 0.13MI S/O Sweetwater RD · Structure no. 57C0698

Built
1997
28 years old
Condition
Good
inspected November 2024
Type
Slab
Concrete Continuous
Length
500 ft
8 main spans
Daily traffic
13,792
2016 count
Owner
County
County Highway Agency

About this bridge

Bonita Road over Sweetwater River is a concrete continuous slab carrying Bonita Road over Sweetwater River in San Diego County, California. It was built in 1997, so it is 28 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 13,792 vehicles a day, roughly 1% of them trucks, projected to reach 14,555 by 2045. The structure is 500 ft (152.5 m) long and 82 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesBonita Road
CrossesSweetwater River
Location0.13MI S/O Sweetwater RD
RouteCounty Highway 0
Coordinates32.67483, -117.01626
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
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 typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20 + Mod
Structure length500 ft (152.5 m)
Longest span66 ft (20 m)
Deck width82 ft (25.1 m)
Roadway width75 ft (22.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,792 (2016)
Projected traffic14,555 by 2045
Trucks1%
Lanes on structure5
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

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 Road over Sweetwater River built?

It was built in 1997, making it 28 years old in 2025.

What condition is Bonita Road over Sweetwater River 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 Road over Sweetwater River carry?

About 13,792 vehicles per day (2016 count), of which roughly 1% are trucks.

How long is Bonita Road over Sweetwater River?

The structure is 500 ft (152.5 m) long with a longest span of 66 ft (20 m) and a deck 82 ft wide.

Who owns Bonita Road over Sweetwater River?

It is owned by the County Highway Agency.