US Bridges

E River Road S over Railroad Creek

Good

Billings County, North Dakota · East River Road at Medora · Structure no. 000000004106290

Built
2002
23 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
260
2016 count
Owner
County
County Highway Agency

About this bridge

E River Road S over Railroad Creek is a concrete culvert carrying E River Road S over Railroad Creek in Billings County, North Dakota. It was built in 2002, so it is 23 years old, younger than the North Dakota average of 48.2 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 260 vehicles a day, roughly 18% of them trucks, projected to reach 290 by 2036. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesE River Road S
CrossesRailroad Creek
LocationEast River Road at Medora
RouteCounty Highway 434
Coordinates46.91106, -103.522
Functional classRural Major Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.7 US tons
Inventory rating46.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 25 or greater
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic260 (2016)
Projected traffic290 by 2036
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 E River Road S over Railroad Creek built?

It was built in 2002, making it 23 years old in 2025.

What condition is E River Road S over Railroad Creek 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 River Road S over Railroad Creek carry?

About 260 vehicles per day (2016 count), of which roughly 18% are trucks.

How long is E River Road S over Railroad Creek?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m).

Who owns E River Road S over Railroad Creek?

It is owned by the County Highway Agency.