US Bridges

Willow Creek RD over Little Belt Creek 099

Fair

Cascade County, Montana · 13M E Belt · Structure no. L07233010+04001

Built
1950
75 years old, rebuilt 2005
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
24 ft
1 main span
Daily traffic
158
2023 count
Owner
County
County Highway Agency

About this bridge

Willow Creek RD over Little Belt Creek 099 is a steel stringer/multi-beam or girder carrying Willow Creek RD over Little Belt Creek 099 in Cascade County, Montana. It was built in 1950 and reconstructed in 2005, so it is 75 years old, older 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 158 vehicles a day, roughly 3% of them trucks, projected to reach 167 by 2043. The structure is 24 ft (7.2 m) long and 20 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

CarriesWillow Creek RD
CrossesLittle Belt Creek 099
Location13M E Belt
RouteCounty Highway 7233
StateMontana
Coordinates47.3851, -110.70906
Functional classRural Minor Collector

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 inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48 US tons
Inventory rating37 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHS 20
Structure length24 ft (7.2 m)
Longest span24 ft (7.2 m)
Deck width20 ft (6 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic158 (2023)
Projected traffic167 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Willow Creek RD over Little Belt Creek 099 built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 2005.

What condition is Willow Creek RD over Little Belt Creek 099 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 March 2024.

How much traffic does Willow Creek RD over Little Belt Creek 099 carry?

About 158 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Willow Creek RD over Little Belt Creek 099?

The structure is 24 ft (7.2 m) long with a longest span of 24 ft (7.2 m) and a deck 20 ft wide.

Who owns Willow Creek RD over Little Belt Creek 099?

It is owned by the County Highway Agency.