US Bridges

100th ST SE over County Drain No. 35

Good

Richland County, North Dakota · 6 South of Fairmount · Structure no. 000000039133460

Built
2015
10 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
30 ft
1 main span
Daily traffic
37
2022 count
Owner
County
County Highway Agency

About this bridge

100th ST SE over County Drain No. 35 is a steel stringer/multi-beam or girder carrying 100th ST SE over County Drain No. 35 in Richland County, North Dakota. It was built in 2015, so it is 10 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 37 vehicles a day, projected to reach 20 by 2038. The structure is 30 ft (9.1 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries100th ST SE
CrossesCounty Drain No. 35
Location6 South of Fairmount
RouteCounty Highway 0
CountyRichland County
StateNorth Dakota
Coordinates45.96434, -96.61198
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 inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.9 US tons
Inventory rating40.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHL 93
Structure length30 ft (9.1 m)
Longest span30 ft (9.1 m)
Deck width30 ft (9.1 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic37 (2022)
Projected traffic20 by 2038
Trucks—
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$186,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 100th ST SE over County Drain No. 35 built?

It was built in 2015, making it 10 years old in 2025.

What condition is 100th ST SE over County Drain No. 35 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 June 2024.

How much traffic does 100th ST SE over County Drain No. 35 carry?

About 37 vehicles per day (2022 count).

How long is 100th ST SE over County Drain No. 35?

The structure is 30 ft (9.1 m) long with a longest span of 30 ft (9.1 m) and a deck 30 ft wide.

Who owns 100th ST SE over County Drain No. 35?

It is owned by the County Highway Agency.