US Bridges

E River Road S over Sully Creek

Good

Billings County, North Dakota · 1 South of Medora · Structure no. 000000004106300

Built
1982
43 years old
Condition
Good
inspected May 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
71 ft
1 main span
Daily traffic
175
2018 count
Owner
County
County Highway Agency

About this bridge

E River Road S over Sully Creek is a prestressed concrete box beam or girders - single or spread carrying E River Road S over Sully Creek in Billings County, North Dakota. It was built in 1982, so it is 43 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 175 vehicles a day, roughly 14% of them trucks, projected to reach 175 by 2038. The structure is 71 ft (21.6 m) long and 32 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesE River Road S
CrossesSully Creek
Location1 South of Medora
RouteCounty Highway 0
Coordinates46.89199, -103.5261
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.5 US tons
Inventory rating21.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length71 ft (21.6 m)
Longest span67 ft (20.4 m)
Deck width32 ft (9.9 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic175 (2018)
Projected traffic175 by 2038
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 Sully Creek built?

It was built in 1982, making it 43 years old in 2025.

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

About 175 vehicles per day (2018 count), of which roughly 14% are trucks.

How long is E River Road S over Sully Creek?

The structure is 71 ft (21.6 m) long with a longest span of 67 ft (20.4 m) and a deck 32 ft wide.

Who owns E River Road S over Sully Creek?

It is owned by the County Highway Agency.