US Bridges

Sweetwater Road over Sweetwater River Trib.

Fair

San Diego County, California · 20FT E/O Briarwood RD · Structure no. 57C0756

Built
1974
51 years old
Condition
Fair
inspected November 2022
Type
Culvert
Concrete Continuous
Length
23 ft
3 main spans
Daily traffic
1,050
2016 count
Owner
County
County Highway Agency

About this bridge

Sweetwater Road over Sweetwater River Trib. is a concrete continuous culvert carrying Sweetwater Road over Sweetwater River Trib. in San Diego County, California. It was built in 1974, so it is 51 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 1,050 vehicles a day, roughly 3% of them trucks, projected to reach 1,576 by 2040. The structure is 23 ft (7 m) long and 37 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSweetwater Road
CrossesSweetwater River Trib.
Location20FT E/O Briarwood RD
RouteCity Street 0
CountySan Diego County
StateCalifornia
Coordinates32.67479, -117.0239
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 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 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 Continuous
DeckNot applicable
Main spans3
Design loadUnknown
Structure length23 ft (7 m)
Longest span6 ft (1.8 m)
Deck width37 ft (11.3 m)
Roadway width31 ft (9.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,050 (2016)
Projected traffic1,576 by 2040
Trucks3%
Lanes on structure2
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Sweetwater Road over Sweetwater River Trib. built?

It was built in 1974, making it 51 years old in 2025.

What condition is Sweetwater Road over Sweetwater River Trib. 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 November 2022.

How much traffic does Sweetwater Road over Sweetwater River Trib. carry?

About 1,050 vehicles per day (2016 count), of which roughly 3% are trucks.

How long is Sweetwater Road over Sweetwater River Trib.?

The structure is 23 ft (7 m) long with a longest span of 6 ft (1.8 m) and a deck 37 ft wide.

Who owns Sweetwater Road over Sweetwater River Trib.?

It is owned by the County Highway Agency.