US Bridges

8th Ave NE over Timber Creek

FairPosted for load

Adams County, North Dakota · 7 East 11 North Lemmon Sd · Structure no. 000000001148130

Built
1938
87 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
39 ft
1 main span
Daily traffic
10
2019 count
Owner
County
County Highway Agency

About this bridge

8th Ave NE over Timber Creek is a steel stringer/multi-beam or girder carrying 8th Ave NE over Timber Creek in Adams County, North Dakota. It was built in 1938, so it is 87 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. Its operating status is: posted for load restriction.

It carries about 10 vehicles a day, projected to reach 10 by 2039. The structure is 39 ft (12 m) long and 20 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
Carries8th Ave NE
CrossesTimber Creek
Location7 East 11 North Lemmon Sd
RouteCounty Highway 0
CountyAdams County
StateNorth Dakota
Coordinates46.10404, -102.00376
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating23.7 US tons
Inventory rating14 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length39 ft (12 m)
Longest span37 ft (11.3 m)
Deck width20 ft (6.1 m)
Roadway width18 ft (5.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2019)
Projected traffic10 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$110,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 8th Ave NE over Timber Creek built?

It was built in 1938, making it 87 years old in 2025.

What condition is 8th Ave NE over Timber Creek 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 September 2023.

How much traffic does 8th Ave NE over Timber Creek carry?

About 10 vehicles per day (2019 count).

How long is 8th Ave NE over Timber Creek?

The structure is 39 ft (12 m) long with a longest span of 37 ft (11.3 m) and a deck 20 ft wide.

Who owns 8th Ave NE over Timber Creek?

It is owned by the County Highway Agency.