US Bridges

Lone Star Road over Cortina Creek

Poor

Colusa County, California · 0.7 MI South of Meyers RD · Structure no. 15C0079

Built
1968
57 years old
Condition
Poor
inspected October 2023
Type
Slab
Concrete Continuous
Length
67 ft
2 main spans
Daily traffic
2,077
2014 count
Owner
County
County Highway Agency

About this bridge

Lone Star Road over Cortina Creek is a concrete continuous slab carrying Lone Star Road over Cortina Creek in Colusa County, California. It was built in 1968, so it is 57 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 2,077 vehicles a day, roughly 10% of them trucks, projected to reach 2,500 by 2042. The structure is 67 ft (20.3 m) long and 32 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesLone Star Road
CrossesCortina Creek
Location0.7 MI South of Meyers RD
RouteCounty Highway 0
CountyColusa County
StateCalifornia
Coordinates39.09036, -122.07884
Functional classRural Major 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.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.9 US tons
Inventory rating40.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length67 ft (20.3 m)
Longest span32 ft (9.8 m)
Deck width32 ft (9.9 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,077 (2014)
Projected traffic2,500 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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$336,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Lone Star Road over Cortina Creek built?

It was built in 1968, making it 57 years old in 2025.

What condition is Lone Star Road over Cortina 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 October 2023.

How much traffic does Lone Star Road over Cortina Creek carry?

About 2,077 vehicles per day (2014 count), of which roughly 10% are trucks.

How long is Lone Star Road over Cortina Creek?

The structure is 67 ft (20.3 m) long with a longest span of 32 ft (9.8 m) and a deck 32 ft wide.

Who owns Lone Star Road over Cortina Creek?

It is owned by the County Highway Agency.