US Bridges

State Route 96 over Lumgrey Creek

Fair

Siskiyou County, California · 02-SIS-096-93.07 · Structure no. 02 0086

Built
1923
102 years old, rebuilt 1969
Condition
Fair
inspected September 2024
Type
Culvert
Concrete Continuous
Length
28 ft
3 main spans
Daily traffic
650
2015 count
Owner
State
State Highway Agency

About this bridge

State Route 96 over Lumgrey Creek is a concrete continuous culvert carrying State Route 96 over Lumgrey Creek in Siskiyou County, California. It was built in 1923 and reconstructed in 1969, so it is 102 years old, older 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 6 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 650 vehicles a day, projected to reach 1,331 by 2042. The structure is 28 ft (8.5 m) long. If it were closed, the detour would be 44.1 mi (71 km).

Location

Open in Google Maps
CarriesState Route 96
CrossesLumgrey Creek
Location02-SIS-096-93.07
RouteState Highway 96
CountySiskiyou County
StateCalifornia
Coordinates41.86749, -122.73898
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadUnknown
Structure length28 ft (8.5 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic650 (2015)
Projected traffic1,331 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed44.1 mi (71 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was State Route 96 over Lumgrey Creek built?

It was built in 1923, making it 102 years old in 2025. It was reconstructed in 1969.

What condition is State Route 96 over Lumgrey Creek 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 September 2024.

How much traffic does State Route 96 over Lumgrey Creek carry?

About 650 vehicles per day (2015 count).

How long is State Route 96 over Lumgrey Creek?

The structure is 28 ft (8.5 m) long with a longest span of 8 ft (2.4 m).

Who owns State Route 96 over Lumgrey Creek?

It is owned by the State Highway Agency.