US Bridges

State Route 58 over Midle Fork Huer Huero CR

Good

San Luis Obispo County, California · 05-SLO-058-9.94 · Structure no. 49 0251

Built
2008
17 years old
Condition
Good
inspected May 2024
Type
Slab
Prestressed Concrete Continuous
Length
203 ft
4 main spans
Daily traffic
720
2010 count
Owner
State
State Highway Agency

About this bridge

State Route 58 over Midle Fork Huer Huero CR is a prestressed concrete continuous slab carrying State Route 58 over Midle Fork Huer Huero CR in San Luis Obispo County, California. It was built in 2008, so it is 17 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 720 vehicles a day, roughly 14% of them trucks, projected to reach 1,167 by 2042. The structure is 203 ft (62 m) long and 43 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

CarriesState Route 58
CrossesMidle Fork Huer Huero CR
Location05-SLO-058-9.94
RouteState Highway 58
Coordinates35.43729, -120.50287
Functional classRural Minor Arterial

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 inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
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 spans4
Design loadHS 20 + Mod
Structure length203 ft (62 m)
Longest span58 ft (17.7 m)
Deck width43 ft (13 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic720 (2010)
Projected traffic1,167 by 2042
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 State Route 58 over Midle Fork Huer Huero CR built?

It was built in 2008, making it 17 years old in 2025.

What condition is State Route 58 over Midle Fork Huer Huero CR 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 2024.

How much traffic does State Route 58 over Midle Fork Huer Huero CR carry?

About 720 vehicles per day (2010 count), of which roughly 14% are trucks.

How long is State Route 58 over Midle Fork Huer Huero CR?

The structure is 203 ft (62 m) long with a longest span of 58 ft (17.7 m) and a deck 43 ft wide.

Who owns State Route 58 over Midle Fork Huer Huero CR?

It is owned by the State Highway Agency.