US Bridges

County Road 10 over Drain 14

Fair

Cass County, North Dakota · 4 East of Mapleton · Structure no. 000000009135240

Built
1947
78 years old, rebuilt 1954
Condition
Fair
inspected June 2023
Type
Tee Beam
Concrete
Length
44 ft
1 main span
Daily traffic
1,555
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 10 over Drain 14 is a concrete tee beam carrying County Road 10 over Drain 14 in Cass County, North Dakota. It was built in 1947 and reconstructed in 1954, so it is 78 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 fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,555 vehicles a day, roughly 12% of them trucks, projected to reach 2,094 by 2042. The structure is 44 ft (13.4 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCounty Road 10
CrossesDrain 14
Location4 East of Mapleton
RouteCounty Highway 930
CountyCass County
StateNorth Dakota
Coordinates46.89156, -96.97225
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58 US tons
Inventory rating34.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length44 ft (13.4 m)
Longest span42 ft (12.8 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,555 (2022)
Projected traffic2,094 by 2042
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$50,000
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 10 over Drain 14 built?

It was built in 1947, making it 78 years old in 2025. It was reconstructed in 1954.

What condition is County Road 10 over Drain 14 in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2023.

How much traffic does County Road 10 over Drain 14 carry?

About 1,555 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is County Road 10 over Drain 14?

The structure is 44 ft (13.4 m) long with a longest span of 42 ft (12.8 m) and a deck 30 ft wide.

Who owns County Road 10 over Drain 14?

It is owned by the County Highway Agency.