US Bridges

Abrams Lake Road over Interstate 5 SB

Fair

Siskiyou County, California · 02-SIS-005-R13.18L · Structure no. 02 0152L

Built
1973
52 years old
Condition
Fair
inspected July 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
147 ft
1 main span
Daily traffic
1,894
2024 count
Owner
State
State Highway Agency

About this bridge

Abrams Lake Road over Interstate 5 SB is a prestressed concrete box beam or girders - multiple carrying Abrams Lake Road over Interstate 5 SB in Siskiyou County, California. It was built in 1973, so it is 52 years old, younger than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,894 vehicles a day, roughly 2% of them trucks, projected to reach 2,149 by 2045. The structure is 147 ft (44.7 m) long and 42 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesAbrams Lake Road
CrossesInterstate 5 SB
Location02-SIS-005-R13.18L
RouteCounty Highway 0
CountySiskiyou County
StateCalifornia
Coordinates41.34412, -122.34486
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.4 US tons
Inventory rating30.3 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length147 ft (44.7 m)
Longest span145 ft (44.2 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,894 (2024)
Projected traffic2,149 by 2045
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 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 Abrams Lake Road over Interstate 5 SB built?

It was built in 1973, making it 52 years old in 2025.

What condition is Abrams Lake Road over Interstate 5 SB in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2024.

How much traffic does Abrams Lake Road over Interstate 5 SB carry?

About 1,894 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is Abrams Lake Road over Interstate 5 SB?

The structure is 147 ft (44.7 m) long with a longest span of 145 ft (44.2 m) and a deck 42 ft wide.

Who owns Abrams Lake Road over Interstate 5 SB?

It is owned by the State Highway Agency.