US Bridges

Jack Creek RD over Paso Robles Creek

Poor

San Luis Obispo County, California · 0.2 MI N State RTE 46 · Structure no. 49C0342

Built
1938
87 years old, rebuilt 1969
Condition
Poor
inspected July 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
204 ft
11 main spans
Daily traffic
151
2014 count
Owner
County
County Highway Agency

About this bridge

Jack Creek RD over Paso Robles Creek is a wood or timber stringer/multi-beam or girder carrying Jack Creek RD over Paso Robles Creek in San Luis Obispo County, California. It was built in 1938 and reconstructed in 1969, so it is 87 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 4 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: open, would be posted or closed except for temporary shoring.

It carries about 151 vehicles a day, roughly 5% of them trucks, projected to reach 151 by 2044. The structure is 204 ft (62.2 m) long and 26 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesJack Creek RD
CrossesPaso Robles Creek
Location0.2 MI N State RTE 46
RouteCounty Highway 0
Coordinates35.54827, -120.79306
Functional classRural Local

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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 12 months
Operating statusOpen, would be posted or closed except for temporary shoring
ScourUnknown foundation; not evaluated for scour
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating0 US tons
Inventory rating0 US tons

Structure

MaterialWood or Timber
DeckConcrete, cast-in-place
Main spans11
Design loadH 15
Structure length204 ft (62.2 m)
Longest span19 ft (5.8 m)
Deck width26 ft (7.9 m)
Roadway width12 ft (3.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic151 (2014)
Projected traffic151 by 2044
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$1.9 million (2019 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Jack Creek RD over Paso Robles Creek built?

It was built in 1938, making it 87 years old in 2025. It was reconstructed in 1969.

What condition is Jack Creek RD over Paso Robles 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 Jack Creek RD over Paso Robles Creek carry?

About 151 vehicles per day (2014 count), of which roughly 5% are trucks.

How long is Jack Creek RD over Paso Robles Creek?

The structure is 204 ft (62.2 m) long with a longest span of 19 ft (5.8 m) and a deck 26 ft wide.

Who owns Jack Creek RD over Paso Robles Creek?

It is owned by the County Highway Agency.