US Bridges

Atascadero Road over Eagle Creek

Good

San Luis Obispo County, California · .1 MI E of Sa. Barbara RD · Structure no. 49C0452

Built
2005
20 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
150
2012 count
Owner
City
City or Municipal Highway Agency

About this bridge

Atascadero Road over Eagle Creek is a steel stringer/multi-beam or girder carrying Atascadero Road over Eagle Creek in San Luis Obispo County, California. It was built in 2005, so it is 20 years old, younger 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 150 vehicles a day, roughly 1% of them trucks, projected to reach 200 by 2041. The structure is 40 ft (12.3 m) long and 25 ft wide. If it were closed, the detour would be 61.5 mi (99 km).

CarriesAtascadero Road
CrossesEagle Creek
Location.1 MI E of Sa. Barbara RD
RouteCity Street 0
Coordinates35.4393, -120.64016
Functional classUrban 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 protection9 ExcellentNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.1 US tons
Inventory rating27.4 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length40 ft (12.3 m)
Longest span40 ft (12.3 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2012)
Projected traffic200 by 2041
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed61.5 mi (99 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Atascadero Road over Eagle Creek built?

It was built in 2005, making it 20 years old in 2025.

What condition is Atascadero Road over Eagle 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 July 2023.

How much traffic does Atascadero Road over Eagle Creek carry?

About 150 vehicles per day (2012 count), of which roughly 1% are trucks.

How long is Atascadero Road over Eagle Creek?

The structure is 40 ft (12.3 m) long with a longest span of 40 ft (12.3 m) and a deck 25 ft wide.

Who owns Atascadero Road over Eagle Creek?

It is owned by the City or Municipal Highway Agency.