US Bridges

State Route 58 over East Fork Huer Huero Crk

Fair

San Luis Obispo County, California · 05-SLO-058-11.78 · Structure no. 49 0172

Built
1951
74 years old
Condition
Fair
inspected May 2024
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
825
2009 count
Owner
State
State Highway Agency

About this bridge

State Route 58 over East Fork Huer Huero Crk is a concrete continuous culvert carrying State Route 58 over East Fork Huer Huero Crk in San Luis Obispo County, California. It was built in 1951, so it is 74 years old, older 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 825 vehicles a day, roughly 14% of them trucks, projected to reach 1,851 by 2044. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 19.9 mi (32 km).

CarriesState Route 58
CrossesEast Fork Huer Huero Crk
Location05-SLO-058-11.78
RouteState Highway 58
Coordinates35.45118, -120.47931
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length26 ft (7.9 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic825 (2009)
Projected traffic1,851 by 2044
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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 East Fork Huer Huero Crk built?

It was built in 1951, making it 74 years old in 2025.

What condition is State Route 58 over East Fork Huer Huero Crk 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 May 2024.

How much traffic does State Route 58 over East Fork Huer Huero Crk carry?

About 825 vehicles per day (2009 count), of which roughly 14% are trucks.

How long is State Route 58 over East Fork Huer Huero Crk?

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m).

Who owns State Route 58 over East Fork Huer Huero Crk?

It is owned by the State Highway Agency.