US Bridges

CO RD 002 FH 73 over Wise River 018

Fair

Beaverhead County, Montana · 18M S Wise River · Structure no. L01002018+02001

Built
1987
38 years old
Condition
Fair
inspected May 2024
Type
Tee Beam
Prestressed Concrete
Length
43 ft
1 main span
Daily traffic
224
2023 count
Owner
County
County Highway Agency

About this bridge

CO RD 002 FH 73 over Wise River 018 is a prestressed concrete tee beam carrying CO RD 002 FH 73 over Wise River 018 in Beaverhead County, Montana. It was built in 1987, so it is 38 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 224 vehicles a day, roughly 3% of them trucks, projected to reach 240 by 2043. The structure is 43 ft (13.1 m) long and 33 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesCO RD 002 FH 73
CrossesWise River 018
Location18M S Wise River
RouteFederal Lands Road 1002
StateMontana
Coordinates45.57799, -113.10709
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating67 US tons
Inventory rating38 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length43 ft (13.1 m)
Longest span42 ft (12.8 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic224 (2023)
Projected traffic240 by 2043
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 CO RD 002 FH 73 over Wise River 018 built?

It was built in 1987, making it 38 years old in 2025.

What condition is CO RD 002 FH 73 over Wise River 018 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 May 2024.

How much traffic does CO RD 002 FH 73 over Wise River 018 carry?

About 224 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is CO RD 002 FH 73 over Wise River 018?

The structure is 43 ft (13.1 m) long with a longest span of 42 ft (12.8 m) and a deck 33 ft wide.

Who owns CO RD 002 FH 73 over Wise River 018?

It is owned by the County Highway Agency.