US Bridges

State Route 175 over Kelsey Creek

Good

Lake County, California · 01-LAK-175-19.48 · Structure no. 14 0083

Built
2023
2 years old
Condition
Good
inspected June 2024
Type
Slab
Prestressed Concrete
Length
30 ft
1 main span
Daily traffic
2,900
2019 count
Owner
State
State Highway Agency

About this bridge

State Route 175 over Kelsey Creek is a prestressed concrete slab carrying State Route 175 over Kelsey Creek in Lake County, California. It was built in 2023, so it is 2 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 2,900 vehicles a day, roughly 25% of them trucks, projected to reach 3,800 by 2044. The structure is 30 ft (9.1 m) long and 44 ft wide. If it were closed, the detour would be 4.3 mi (7 km).

CarriesState Route 175
CrossesKelsey Creek
Location01-LAK-175-19.48
RouteState Highway 175
Coordinates38.82403, -122.72131
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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour evaluation has not been made
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length30 ft (9.1 m)
Longest span25 ft (7.7 m)
Deck width44 ft (13.4 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,900 (2019)
Projected traffic3,800 by 2044
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed4.3 mi (7 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 State Route 175 over Kelsey Creek built?

It was built in 2023, making it 2 years old in 2025.

What condition is State Route 175 over Kelsey Creek 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 June 2024.

How much traffic does State Route 175 over Kelsey Creek carry?

About 2,900 vehicles per day (2019 count), of which roughly 25% are trucks.

How long is State Route 175 over Kelsey Creek?

The structure is 30 ft (9.1 m) long with a longest span of 25 ft (7.7 m) and a deck 44 ft wide.

Who owns State Route 175 over Kelsey Creek?

It is owned by the State Highway Agency.