US Bridges

Snta Rta Old CR RD over Old Creek

Poor

San Luis Obispo County, California · 0.3 MI E Cypress Mtn DR · Structure no. 49C0093

Built
1940
85 years old
Condition
Poor
inspected May 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
104 ft
6 main spans
Daily traffic
249
2007 count
Owner
County
County Highway Agency

About this bridge

Snta Rta Old CR RD over Old Creek is a wood or timber stringer/multi-beam or girder carrying Snta Rta Old CR RD over Old Creek in San Luis Obispo County, California. It was built in 1940, so it is 85 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.

It carries about 249 vehicles a day, roughly 3% of them trucks, projected to reach 337 by 2046. The structure is 104 ft (31.7 m) long and 24 ft wide. If it were closed, the detour would be 26.1 mi (42 km).

CarriesSnta Rta Old CR RD
CrossesOld Creek
Location0.3 MI E Cypress Mtn DR
RouteCounty Highway 0
Coordinates35.47227, -120.85225
Functional classRural Minor Collector

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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating35.1 US tons
Inventory rating23.9 US tons

Structure

MaterialWood or Timber
DeckConcrete, cast-in-place
Main spans6
Design loadUnknown
Structure length104 ft (31.7 m)
Longest span19 ft (5.8 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic249 (2007)
Projected traffic337 by 2046
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.1 mi (42 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$388,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Snta Rta Old CR RD over Old Creek built?

It was built in 1940, making it 85 years old in 2025.

What condition is Snta Rta Old CR RD over Old 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 May 2024.

How much traffic does Snta Rta Old CR RD over Old Creek carry?

About 249 vehicles per day (2007 count), of which roughly 3% are trucks.

How long is Snta Rta Old CR RD over Old Creek?

The structure is 104 ft (31.7 m) long with a longest span of 19 ft (5.8 m) and a deck 24 ft wide.

Who owns Snta Rta Old CR RD over Old Creek?

It is owned by the County Highway Agency.