US Bridges

Dawsonia ST over Sweetwater Riv Tributary

Fair

San Diego County, California · 375FT S/O Central Ave · Structure no. 57C0634

Built
1986
39 years old
Condition
Fair
inspected November 2022
Type
Culvert
Concrete
Length
32 ft
3 main spans
Daily traffic
1,367
2016 count
Owner
County
County Highway Agency

About this bridge

Dawsonia ST over Sweetwater Riv Tributary is a concrete culvert carrying Dawsonia ST over Sweetwater Riv Tributary in San Diego County, California. It was built in 1986, so it is 39 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 1,367 vehicles a day, projected to reach 1,530 by 2040. The structure is 32 ft (9.8 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesDawsonia ST
CrossesSweetwater Riv Tributary
Location375FT S/O Central Ave
RouteCounty Highway 0
CountySan Diego County
StateCalifornia
Coordinates32.66906, -117.01731
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 protection8 Very GoodNo problems noted.
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 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 typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length32 ft (9.8 m)
Longest span10 ft (3 m)
Deck width44 ft (13.4 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,367 (2016)
Projected traffic1,530 by 2040
Trucks0%
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Dawsonia ST over Sweetwater Riv Tributary built?

It was built in 1986, making it 39 years old in 2025.

What condition is Dawsonia ST over Sweetwater Riv 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 November 2022.

How much traffic does Dawsonia ST over Sweetwater Riv Tributary carry?

About 1,367 vehicles per day (2016 count).

How long is Dawsonia ST over Sweetwater Riv Tributary?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m) and a deck 44 ft wide.

Who owns Dawsonia ST over Sweetwater Riv Tributary?

It is owned by the County Highway Agency.