US Bridges

9th St. SW over Spring Creek

Fair

Mercer County, North Dakota · 2 West of Golden Valley · Structure no. 000000029105190

Built
1950
75 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
71 ft
1 main span
Daily traffic
10
2018 count
Owner
County
County Highway Agency

About this bridge

9th St. SW over Spring Creek is a steel stringer/multi-beam or girder carrying 9th St. SW over Spring Creek in Mercer County, North Dakota. It was built in 1950, so it is 75 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 6 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 10 vehicles a day, projected to reach 10 by 2038. The structure is 71 ft (21.6 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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Carries9th St. SW
CrossesSpring Creek
Location2 West of Golden Valley
RouteCounty Highway 0
CountyMercer County
StateNorth Dakota
Coordinates47.28393, -102.11596
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating42.4 US tons
Inventory rating25.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length71 ft (21.6 m)
Longest span64 ft (19.5 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2018)
Projected traffic10 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$176,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 9th St. SW over Spring Creek built?

It was built in 1950, making it 75 years old in 2025.

What condition is 9th St. SW over Spring 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 November 2023.

How much traffic does 9th St. SW over Spring Creek carry?

About 10 vehicles per day (2018 count).

How long is 9th St. SW over Spring Creek?

The structure is 71 ft (21.6 m) long with a longest span of 64 ft (19.5 m) and a deck 24 ft wide.

Who owns 9th St. SW over Spring Creek?

It is owned by the County Highway Agency.