US Bridges

Hendrickson Hill R over Mccoy Creek 001

Fair

Sheridan County, Montana · 4M NW Plentywood · Structure no. L46004008+09001

Built
1994
31 years old
Condition
Fair
inspected January 2024
Type
Tee Beam
Prestressed Concrete
Length
60 ft
1 main span
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Hendrickson Hill R over Mccoy Creek 001 is a prestressed concrete tee beam carrying Hendrickson Hill R over Mccoy Creek 001 in Sheridan County, Montana. It was built in 1994, so it is 31 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 60 ft (18.3 m) long and 24 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

CarriesHendrickson Hill R
CrossesMccoy Creek 001
Location4M NW Plentywood
RouteCounty Highway 46004
StateMontana
Coordinates48.80306, -104.63047
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating57 US tons
Inventory rating36 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span59 ft (18 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.2 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 closed16.2 mi (26 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 Hendrickson Hill R over Mccoy Creek 001 built?

It was built in 1994, making it 31 years old in 2025.

What condition is Hendrickson Hill R over Mccoy Creek 001 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 January 2024.

How much traffic does Hendrickson Hill R over Mccoy Creek 001 carry?

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

How long is Hendrickson Hill R over Mccoy Creek 001?

The structure is 60 ft (18.3 m) long with a longest span of 59 ft (18 m) and a deck 24 ft wide.

Who owns Hendrickson Hill R over Mccoy Creek 001?

It is owned by the County Highway Agency.