US Bridges

U.S. Highway 395 over Mill Creek

Good

Mono County, California · 09-MNO-395-107.11 · Structure no. 47 0046

Built
1964
61 years old, rebuilt 1996
Condition
Good
inspected September 2023
Type
Culvert
Concrete
Length
22 ft
1 main span
Daily traffic
6,950
2019 count
Owner
State
State Highway Agency

About this bridge

U.S. Highway 395 over Mill Creek is a concrete culvert carrying U.S. Highway 395 over Mill Creek in Mono County, California. It was built in 1964 and reconstructed in 1996, so it is 61 years old, older 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 6,950 vehicles a day, roughly 11% of them trucks, projected to reach 7,600 by 2040. The structure is 22 ft (6.7 m) long and 56 ft wide. If it were closed, the detour would be 69 mi (111 km).

CarriesU.S. Highway 395
CrossesMill Creek
Location09-MNO-395-107.11
RouteU.S. Route 395
Coordinates38.51331, -119.47159
Functional classRural Principal Arterial - Other

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length22 ft (6.7 m)
Longest span20 ft (6.1 m)
Deck width56 ft (17.2 m)
Roadway width54 ft (16.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,950 (2019)
Projected traffic7,600 by 2040
Trucks11%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed69 mi (111 km)
TollOn a free road
National Highway SystemYes

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 U.S. Highway 395 over Mill Creek built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 1996.

What condition is U.S. Highway 395 over Mill 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 September 2023.

How much traffic does U.S. Highway 395 over Mill Creek carry?

About 6,950 vehicles per day (2019 count), of which roughly 11% are trucks.

How long is U.S. Highway 395 over Mill Creek?

The structure is 22 ft (6.7 m) long with a longest span of 20 ft (6.1 m) and a deck 56 ft wide.

Who owns U.S. Highway 395 over Mill Creek?

It is owned by the State Highway Agency.