US Bridges

Dutch Hill RD over Mill Creek 072

Fair

Ravalli County, Montana · W of Woodside · Structure no. L41090000+07001

Built
1985
40 years old
Condition
Fair
inspected September 2023
Type
Channel Beam
Prestressed Concrete
Length
24 ft
1 main span
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Dutch Hill RD over Mill Creek 072 is a prestressed concrete channel beam carrying Dutch Hill RD over Mill Creek 072 in Ravalli County, Montana. It was built in 1985, so it is 40 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 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 24 ft (7.3 m) long and 30 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesDutch Hill RD
CrossesMill Creek 072
LocationW of Woodside
RouteCounty Highway 41090
StateMontana
Coordinates46.31288, -114.17186
Functional classRural Major 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34.6 US tons
Inventory rating26.5 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length24 ft (7.3 m)
Longest span23 ft (7 m)
Deck width30 ft (9 m)
Roadway width29 ft (8.8 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 closed6.2 mi (10 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 Dutch Hill RD over Mill Creek 072 built?

It was built in 1985, making it 40 years old in 2025.

What condition is Dutch Hill RD over Mill Creek 072 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 September 2023.

How much traffic does Dutch Hill RD over Mill Creek 072 carry?

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

How long is Dutch Hill RD over Mill Creek 072?

The structure is 24 ft (7.3 m) long with a longest span of 23 ft (7 m) and a deck 30 ft wide.

Who owns Dutch Hill RD over Mill Creek 072?

It is owned by the County Highway Agency.