US Bridges

Elk Creek RD over Elk Creek 050

Good

Sanders County, Montana · 4M S Heron · Structure no. L45031000+01001

Built
2001
24 years old
Condition
Good
inspected June 2024
Type
Channel Beam
Prestressed Concrete
Length
43 ft
1 main span
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Elk Creek RD over Elk Creek 050 is a prestressed concrete channel beam carrying Elk Creek RD over Elk Creek 050 in Sanders County, Montana. It was built in 2001, so it is 24 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 43 ft (13 m) long and 25 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesElk Creek RD
CrossesElk Creek 050
Location4M S Heron
RouteCounty Highway 45031
StateMontana
Coordinates48.00861, -115.99565
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating36 US tons
Inventory rating36 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length43 ft (13 m)
Longest span43 ft (13 m)
Deck width25 ft (7.6 m)
Roadway width25 ft (7.6 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 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 Elk Creek RD over Elk Creek 050 built?

It was built in 2001, making it 24 years old in 2025.

What condition is Elk Creek RD over Elk Creek 050 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 June 2024.

How much traffic does Elk Creek RD over Elk Creek 050 carry?

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

How long is Elk Creek RD over Elk Creek 050?

The structure is 43 ft (13 m) long with a longest span of 43 ft (13 m) and a deck 25 ft wide.

Who owns Elk Creek RD over Elk Creek 050?

It is owned by the County Highway Agency.