US Bridges

River RD over Huer Huero Creek

PoorPosted for load

San Luis Obispo County, California · 1.55 MI S Wellsona Ave · Structure no. 49C0346

Built
1965
60 years old, rebuilt 1990
Condition
Poor
inspected July 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
116 ft
6 main spans
Daily traffic
1,198
2024 count
Owner
County
County Highway Agency

About this bridge

River RD over Huer Huero Creek is a wood or timber stringer/multi-beam or girder carrying River RD over Huer Huero Creek in San Luis Obispo County, California. It was built in 1965 and reconstructed in 1990, so it is 60 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for other load-capacity restriction.

It carries about 1,198 vehicles a day, roughly 5% of them trucks, projected to reach 1,780 by 2044. The structure is 116 ft (35.4 m) long and 22 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesRiver RD
CrossesHuer Huero Creek
Location1.55 MI S Wellsona Ave
RouteCounty Highway 0
Coordinates35.67475, -120.68681
Functional classRural Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 12 months
Operating statusPosted for other load-capacity restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.7 US tons
Inventory rating27.9 US tons

Structure

MaterialWood or Timber
DeckConcrete, cast-in-place
Main spans6
Design loadUnknown
Structure length116 ft (35.4 m)
Longest span19 ft (5.8 m)
Deck width22 ft (6.8 m)
Roadway width10 ft (3.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,198 (2024)
Projected traffic1,780 by 2044
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$923,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was River RD over Huer Huero Creek built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 1990.

What condition is River RD over Huer Huero Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.

How much traffic does River RD over Huer Huero Creek carry?

About 1,198 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is River RD over Huer Huero Creek?

The structure is 116 ft (35.4 m) long with a longest span of 19 ft (5.8 m) and a deck 22 ft wide.

Who owns River RD over Huer Huero Creek?

It is owned by the County Highway Agency.