US Bridges

Willows RD over Viejas Creek

Good

San Diego County, California · 0.8 MI E/O I-8 Exit 33 · Structure no. 57C0120

Built
1933
92 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
401 ft
10 main spans
Daily traffic
6,575
2019 count
Owner
County
County Highway Agency

About this bridge

Willows RD over Viejas Creek is a steel stringer/multi-beam or girder carrying Willows RD over Viejas Creek in San Diego County, California. It was built in 1933, so it is 92 years old, older 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 6,575 vehicles a day, roughly 1% of them trucks, projected to reach 10,582 by 2041. The structure is 401 ft (122.2 m) long and 38 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesWillows RD
CrossesViejas Creek
Location0.8 MI E/O I-8 Exit 33
RouteCounty Highway 0
Coordinates32.83746, -116.7177
Functional classRural Minor Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating42.1 US tons
Inventory rating25.4 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans10
Design loadH 15
Structure length401 ft (122.2 m)
Longest span40 ft (12.2 m)
Deck width38 ft (11.6 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,575 (2019)
Projected traffic10,582 by 2041
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Willows RD over Viejas Creek built?

It was built in 1933, making it 92 years old in 2025.

What condition is Willows RD over Viejas Creek 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 May 2023.

How much traffic does Willows RD over Viejas Creek carry?

About 6,575 vehicles per day (2019 count), of which roughly 1% are trucks.

How long is Willows RD over Viejas Creek?

The structure is 401 ft (122.2 m) long with a longest span of 40 ft (12.2 m) and a deck 38 ft wide.

Who owns Willows RD over Viejas Creek?

It is owned by the County Highway Agency.