US Bridges

Adel RD over W Fork Hound Creek 120

Fair

Cascade County, Montana · 19M SE Cascade · Structure no. L07427013+09001

Built
1950
75 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete
Length
53 ft
4 main spans
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Adel RD over W Fork Hound Creek 120 is a concrete culvert carrying Adel RD over W Fork Hound Creek 120 in Cascade County, Montana. It was built in 1950, 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 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 53 ft (16.2 m) long. If it were closed, the detour would be 123.7 mi (199 km).

CarriesAdel RD
CrossesW Fork Hound Creek 120
Location19M SE Cascade
RouteCounty Highway 7427
StateMontana
Coordinates47.07615, -111.54164
Functional classRural Local

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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
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 alignment7: Better than present minimum criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4 (+1 approach)
Design loadHS 20
Structure length53 ft (16.2 m)
Longest span7 ft (2.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2025)
Projected traffic100 by 2040
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 Adel RD over W Fork Hound Creek 120 built?

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

What condition is Adel RD over W Fork Hound Creek 120 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 November 2023.

How much traffic does Adel RD over W Fork Hound Creek 120 carry?

About 100 vehicles per day (2025 count), of which roughly 3% are trucks.

How long is Adel RD over W Fork Hound Creek 120?

The structure is 53 ft (16.2 m) long with a longest span of 7 ft (2.1 m).

Who owns Adel RD over W Fork Hound Creek 120?

It is owned by the County Highway Agency.