US Bridges

Old HWY 80 over Cottonwood CR

Fair

San Diego County, California · 2 MI W/O Buckman Springs · Structure no. 57C0338

Built
1928
97 years old
Condition
Fair
inspected May 2023
Type
Tee Beam
Concrete
Length
36 ft
1 main span
Daily traffic
1,145
2016 count
Owner
County
County Highway Agency

About this bridge

Old HWY 80 over Cottonwood CR is a concrete tee beam carrying Old HWY 80 over Cottonwood CR in San Diego County, California. It was built in 1928, so it is 97 years old, older 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 1,145 vehicles a day, roughly 1% of them trucks, projected to reach 1,200 by 2041. The structure is 36 ft (11 m) long and 44 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesOld HWY 80
CrossesCottonwood CR
Location2 MI W/O Buckman Springs
RouteCounty Highway 0
CountySan Diego County
StateCalifornia
Coordinates32.78836, -116.49729
Functional classRural Minor Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
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 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating33.2 US tons
Inventory rating23.6 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length36 ft (11 m)
Longest span34 ft (10.4 m)
Deck width44 ft (13.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,145 (2016)
Projected traffic1,200 by 2041
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Old HWY 80 over Cottonwood CR built?

It was built in 1928, making it 97 years old in 2025.

What condition is Old HWY 80 over Cottonwood CR 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 2023.

How much traffic does Old HWY 80 over Cottonwood CR carry?

About 1,145 vehicles per day (2016 count), of which roughly 1% are trucks.

How long is Old HWY 80 over Cottonwood CR?

The structure is 36 ft (11 m) long with a longest span of 34 ft (10.4 m) and a deck 44 ft wide.

Who owns Old HWY 80 over Cottonwood CR?

It is owned by the County Highway Agency.