US Bridges

S 5 over Drainage

Good

Daniels County, Montana · 4M E Flaxville · Structure no. P00022015+03401

Built
2011
14 years old
Condition
Good
inspected January 2024
Type
Culvert
Steel
Length
20 ft
2 main spans
Daily traffic
323
2023 count
Owner
State
State Highway Agency

About this bridge

S 5 over Drainage is a steel culvert carrying S 5 over Drainage in Daniels County, Montana. It was built in 2011, so it is 14 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 323 vehicles a day, roughly 28% of them trucks, projected to reach 339 by 2043. The structure is 20 ft (6.1 m) long. If it were closed, the detour would be 123.7 mi (199 km).

CarriesS 5
CrossesDrainage
Location4M E Flaxville
RouteState Highway 5
StateMontana
Coordinates48.80463, -105.09079
Functional classRural Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating100 US tons
Inventory rating100 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadH 15
Structure length20 ft (6.1 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic323 (2023)
Projected traffic339 by 2043
Trucks28%
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

OwnerState Highway Agency
Maintained byState 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$39,000
NavigationNo navigation control on waterway

Frequently asked questions

When was S 5 over Drainage built?

It was built in 2011, making it 14 years old in 2025.

What condition is S 5 over Drainage 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 January 2024.

How much traffic does S 5 over Drainage carry?

About 323 vehicles per day (2023 count), of which roughly 28% are trucks.

How long is S 5 over Drainage?

The structure is 20 ft (6.1 m) long with a longest span of 8 ft (2.4 m).

Who owns S 5 over Drainage?

It is owned by the State Highway Agency.