US Bridges

San Simeon Crk RD over San Simeon Creek

Good

San Luis Obispo County, California · 2.65 MI East of HWY 1 · Structure no. 49C0437

Built
2011
14 years old
Condition
Good
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
146 ft
1 main span
Daily traffic
500
2015 count
Owner
County
County Highway Agency

About this bridge

San Simeon Crk RD over San Simeon Creek is a prestressed concrete box beam or girders - multiple carrying San Simeon Crk RD over San Simeon Creek in San Luis Obispo County, California. It was built in 2011, so it is 14 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 500 vehicles a day, roughly 10% of them trucks, projected to reach 1,990 by 2045. The structure is 146 ft (44.5 m) long and 29 ft wide. If it were closed, the detour would be 46.6 mi (75 km).

CarriesSan Simeon Crk RD
CrossesSan Simeon Creek
Location2.65 MI East of HWY 1
RouteCounty Highway 0
Coordinates35.60729, -121.09094
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length146 ft (44.5 m)
Longest span141 ft (42.9 m)
Deck width29 ft (8.8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2015)
Projected traffic1,990 by 2045
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed46.6 mi (75 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 2011, making it 14 years old in 2025.

What condition is San Simeon Crk RD over San Simeon 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 October 2024.

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

About 500 vehicles per day (2015 count), of which roughly 10% are trucks.

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

The structure is 146 ft (44.5 m) long with a longest span of 141 ft (42.9 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.