US Bridges

E Parrot Creek RD over Musselshell River 012

Good

Musselshell County, Montana · 7M NE Roundup · Structure no. 000000000003797

Built
2016
9 years old
Condition
Good
inspected May 2023
Type
Tee Beam
Prestressed Concrete Continuous
Length
175 ft
3 main spans
Daily traffic
81
2023 count
Owner
County
County Highway Agency

About this bridge

E Parrot Creek RD over Musselshell River 012 is a prestressed concrete continuous tee beam carrying E Parrot Creek RD over Musselshell River 012 in Musselshell County, Montana. It was built in 2016, so it is 9 years old, younger than the Montana average of 47 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 81 vehicles a day, roughly 14% of them trucks, projected to reach 85 by 2043. The structure is 175 ft (53.3 m) long and 24 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

CarriesE Parrot Creek RD
CrossesMusselshell River 012
Location7M NE Roundup
RouteCounty Highway 33104
StateMontana
Coordinates46.4714, -108.39253
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
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 alignment6: Equal to present minimum criteria
Operating rating40 US tons
Inventory rating30 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length175 ft (53.3 m)
Longest span65 ft (19.8 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic81 (2023)
Projected traffic85 by 2043
Trucks14%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.8 million
NavigationNo navigation control on waterway

Frequently asked questions

When was E Parrot Creek RD over Musselshell River 012 built?

It was built in 2016, making it 9 years old in 2025.

What condition is E Parrot Creek RD over Musselshell River 012 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does E Parrot Creek RD over Musselshell River 012 carry?

About 81 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is E Parrot Creek RD over Musselshell River 012?

The structure is 175 ft (53.3 m) long with a longest span of 65 ft (19.8 m) and a deck 24 ft wide.

Who owns E Parrot Creek RD over Musselshell River 012?

It is owned by the County Highway Agency.