US Bridges

San Simeon Crk RD over San Simeon Creek

Fair

San Luis Obispo County, California · 3.5 MI East of SR 1 · Structure no. 49C0436

Built
2012
13 years old
Condition
Fair
inspected October 2022
Type
Slab
Prestressed Concrete Continuous
Length
140 ft
3 main spans
Daily traffic
250
2012 count
Owner
County
County Highway Agency

About this bridge

San Simeon Crk RD over San Simeon Creek is a prestressed concrete continuous slab carrying San Simeon Crk RD over San Simeon Creek in San Luis Obispo County, California. It was built in 2012, so it is 13 years old, younger 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 6 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 250 vehicles a day, roughly 5% of them trucks, projected to reach 320 by 2044. The structure is 140 ft (42.8 m) long and 29 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesSan Simeon Crk RD
CrossesSan Simeon Creek
Location3.5 MI East of SR 1
RouteCounty Highway 0
Coordinates35.60957, -121.0762
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2022
Inspection intervalevery 48 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 rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length140 ft (42.8 m)
Longest span55 ft (16.7 m)
Deck width29 ft (8.8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2012)
Projected traffic320 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was San Simeon Crk RD over San Simeon Creek built?

It was built in 2012, making it 13 years old in 2025.

What condition is San Simeon Crk RD over San Simeon Creek 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 October 2022.

How much traffic does San Simeon Crk RD over San Simeon Creek carry?

About 250 vehicles per day (2012 count), of which roughly 5% are trucks.

How long is San Simeon Crk RD over San Simeon Creek?

The structure is 140 ft (42.8 m) long with a longest span of 55 ft (16.7 m) and a deck 29 ft wide.

Who owns San Simeon Crk RD over San Simeon Creek?

It is owned by the County Highway Agency.