US Bridges

County Road 017 over Charlie Creek 046

Good

Richland County, Montana · 45M NW Sidney · Structure no. 000000202104196

Built
2021
4 years old
Condition
Good
inspected November 2023
Type
Tee Beam
Prestressed Concrete
Length
63 ft
1 main span
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

County Road 017 over Charlie Creek 046 is a prestressed concrete tee beam carrying County Road 017 over Charlie Creek 046 in Richland County, Montana. It was built in 2021, so it is 4 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 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 63 ft (19.1 m) long and 32 ft wide. If it were closed, the detour would be 18 mi (29 km).

CarriesCounty Road 017
CrossesCharlie Creek 046
Location45M NW Sidney
RouteCounty Highway 42017
StateMontana
Coordinates48.04795, -104.78156
Functional classRural Local

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating47 US tons
Inventory rating31 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length63 ft (19.1 m)
Longest span62 ft (18.9 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.2 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 closed18 mi (29 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 County Road 017 over Charlie Creek 046 built?

It was built in 2021, making it 4 years old in 2025.

What condition is County Road 017 over Charlie Creek 046 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 November 2023.

How much traffic does County Road 017 over Charlie Creek 046 carry?

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

How long is County Road 017 over Charlie Creek 046?

The structure is 63 ft (19.1 m) long with a longest span of 62 ft (18.9 m) and a deck 32 ft wide.

Who owns County Road 017 over Charlie Creek 046?

It is owned by the County Highway Agency.