US Bridges

Freshwater Road over Interstate 5

Good

Colusa County, California · 03-COL-005-R19.31 · Structure no. 15 0074

Built
1971
54 years old
Condition
Good
inspected January 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
240 ft
2 main spans
Daily traffic
235
2017 count
Owner
State
State Highway Agency

About this bridge

Freshwater Road over Interstate 5 is a prestressed concrete continuous box beam or girders - multiple carrying Freshwater Road over Interstate 5 in Colusa County, California. It was built in 1971, so it is 54 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 235 vehicles a day, roughly 15% of them trucks, projected to reach 303 by 2044. The structure is 240 ft (73.2 m) long and 34 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesFreshwater Road
CrossesInterstate 5
Location03-COL-005-R19.31
RouteCounty Highway 0
Coordinates39.17424, -122.15533
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.2 US tons
Inventory rating30.3 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length240 ft (73.2 m)
Longest span120 ft (36.6 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic235 (2017)
Projected traffic303 by 2044
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed6.2 mi (10 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Freshwater Road over Interstate 5 built?

It was built in 1971, making it 54 years old in 2025.

What condition is Freshwater Road over Interstate 5 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2024.

How much traffic does Freshwater Road over Interstate 5 carry?

About 235 vehicles per day (2017 count), of which roughly 15% are trucks.

How long is Freshwater Road over Interstate 5?

The structure is 240 ft (73.2 m) long with a longest span of 120 ft (36.6 m) and a deck 34 ft wide.

Who owns Freshwater Road over Interstate 5?

It is owned by the State Highway Agency.