US Bridges

Windsor Blvd over Santa Rosa Creek

Good

San Luis Obispo County, California · 200 South of SR 1 · Structure no. 49C0098

Built
1963
62 years old
Condition
Good
inspected April 2024
Type
Tee Beam
Concrete Continuous
Length
122 ft
3 main spans
Daily traffic
3,416
2010 count
Owner
County
County Highway Agency

About this bridge

Windsor Blvd over Santa Rosa Creek is a concrete continuous tee beam carrying Windsor Blvd over Santa Rosa Creek in San Luis Obispo County, California. It was built in 1963, so it is 62 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 3,416 vehicles a day, roughly 5% of them trucks, projected to reach 10,579 by 2046. The structure is 122 ft (37.2 m) long and 37 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesWindsor Blvd
CrossesSanta Rosa Creek
Location200 South of SR 1
RouteCounty Highway 0
Coordinates35.56801, -121.10422
Functional classRural Local

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 protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating37.8 US tons
Inventory rating28.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length122 ft (37.2 m)
Longest span54 ft (16.5 m)
Deck width37 ft (11.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,416 (2010)
Projected traffic10,579 by 2046
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed123.7 mi (199 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 Windsor Blvd over Santa Rosa Creek built?

It was built in 1963, making it 62 years old in 2025.

What condition is Windsor Blvd over Santa Rosa 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 April 2024.

How much traffic does Windsor Blvd over Santa Rosa Creek carry?

About 3,416 vehicles per day (2010 count), of which roughly 5% are trucks.

How long is Windsor Blvd over Santa Rosa Creek?

The structure is 122 ft (37.2 m) long with a longest span of 54 ft (16.5 m) and a deck 37 ft wide.

Who owns Windsor Blvd over Santa Rosa Creek?

It is owned by the County Highway Agency.