US Bridges

US 93 over Blodgett Creek

Fair

Ravalli County, Montana · 2M N Hamilton · Structure no. P00007050+03101

Built
2008
17 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
84 ft
1 main span
Daily traffic
14,573
2023 count
Owner
State
State Highway Agency

About this bridge

US 93 over Blodgett Creek is a prestressed concrete stringer/multi-beam or girder carrying US 93 over Blodgett Creek in Ravalli County, Montana. It was built in 2008, so it is 17 years old, younger than the Montana average of 47 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 14,573 vehicles a day, roughly 1% of them trucks, projected to reach 15,812 by 2043. The structure is 84 ft (25.5 m) long and 90 ft wide. If it were closed, the detour would be 78.3 mi (126 km).

CarriesUS 93
CrossesBlodgett Creek
Location2M N Hamilton
RouteU.S. Route 93
StateMontana
Coordinates46.28932, -114.16105
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79 US tons
Inventory rating47 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length84 ft (25.5 m)
Longest span84 ft (25.5 m)
Deck width90 ft (27.4 m)
Roadway width76 ft (23.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,573 (2023)
Projected traffic15,812 by 2043
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed78.3 mi (126 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 US 93 over Blodgett Creek built?

It was built in 2008, making it 17 years old in 2025.

What condition is US 93 over Blodgett 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 October 2024.

How much traffic does US 93 over Blodgett Creek carry?

About 14,573 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is US 93 over Blodgett Creek?

The structure is 84 ft (25.5 m) long with a longest span of 84 ft (25.5 m) and a deck 90 ft wide.

Who owns US 93 over Blodgett Creek?

It is owned by the State Highway Agency.