US Bridges

County Highway over I-94/MAPLE River Sep

Poor

Cass County, North Dakota · 2 West of Nd 38 · Structure no. 0094312857

Built
1960
65 years old
Condition
Poor
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
220 ft
4 main spans
Daily traffic
20
2020 count
Owner
State
State Highway Agency

About this bridge

County Highway over I-94/MAPLE River Sep is a prestressed concrete continuous stringer/multi-beam or girder carrying County Highway over I-94/MAPLE River Sep in Cass County, North Dakota. It was built in 1960, so it is 65 years old, older than the North Dakota average of 48.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 20 vehicles a day, projected to reach 20 by 2040. The structure is 220 ft (67.1 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesCounty Highway
CrossesI-94/MAPLE River Sep
Location2 West of Nd 38
RouteCounty Highway 0
CountyCass County
StateNorth Dakota
Coordinates46.87591, -97.59809
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating66.6 US tons
Inventory rating39.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length220 ft (67.1 m)
Longest span65 ft (19.8 m)
Deck width31 ft (9.3 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2020)
Projected traffic20 by 2040
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$459,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was County Highway over I-94/MAPLE River Sep built?

It was built in 1960, making it 65 years old in 2025.

What condition is County Highway over I-94/MAPLE River Sep in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does County Highway over I-94/MAPLE River Sep carry?

About 20 vehicles per day (2020 count).

How long is County Highway over I-94/MAPLE River Sep?

The structure is 220 ft (67.1 m) long with a longest span of 65 ft (19.8 m) and a deck 31 ft wide.

Who owns County Highway over I-94/MAPLE River Sep?

It is owned by the State Highway Agency.