US Bridges

State Route 94 over Cottonwood Creek

Poor

San Diego County, California · 11-SD-094-34.97 · Structure no. 57 0115

Built
1954
71 years old
Condition
Poor
inspected October 2023
Type
Tee Beam
Concrete Continuous
Length
480 ft
7 main spans
Daily traffic
6,900
2019 count
Owner
State
State Highway Agency

About this bridge

State Route 94 over Cottonwood Creek is a concrete continuous tee beam carrying State Route 94 over Cottonwood Creek in San Diego County, California. It was built in 1954, so it is 71 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 6,900 vehicles a day, roughly 5% of them trucks, projected to reach 10,616 by 2041. The structure is 480 ft (146.3 m) long and 34 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

CarriesState Route 94
CrossesCottonwood Creek
Location11-SD-094-34.97
RouteState Highway 94
Coordinates32.60862, -116.70032
Functional classRural Principal Arterial - Other

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.8 US tons
Inventory rating29.3 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length480 ft (146.3 m)
Longest span75 ft (22.9 m)
Deck width34 ft (10.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,900 (2019)
Projected traffic10,616 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2.5 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was State Route 94 over Cottonwood Creek built?

It was built in 1954, making it 71 years old in 2025.

What condition is State Route 94 over Cottonwood Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2023.

How much traffic does State Route 94 over Cottonwood Creek carry?

About 6,900 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is State Route 94 over Cottonwood Creek?

The structure is 480 ft (146.3 m) long with a longest span of 75 ft (22.9 m) and a deck 34 ft wide.

Who owns State Route 94 over Cottonwood Creek?

It is owned by the State Highway Agency.