US Bridges

27th ST SW over Creek

Fair

Mercer County, North Dakota · 18 South of Zap · Structure no. 000000029114370

Built
1979
46 years old
Condition
Fair
inspected July 2024
Type
Tee Beam
Prestressed Concrete
Length
33 ft
1 main span
Daily traffic
50
2018 count
Owner
County
County Highway Agency

About this bridge

27th ST SW over Creek is a prestressed concrete tee beam carrying 27th ST SW over Creek in Mercer County, North Dakota. It was built in 1979, so it is 46 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 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 50 vehicles a day, projected to reach 10 by 2038. The structure is 33 ft (10.1 m) long and 28 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Carries27th ST SW
CrossesCreek
Location18 South of Zap
RouteCounty Highway 0
Coordinates47.0246, -101.93205
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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating21.1 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadH 20
Structure length33 ft (10.1 m)
Longest span30 ft (9.1 m)
Deck width28 ft (8.5 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2018)
Projected traffic10 by 2038
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 27th ST SW over Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is 27th ST SW over 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 July 2024.

How much traffic does 27th ST SW over Creek carry?

About 50 vehicles per day (2018 count).

How long is 27th ST SW over Creek?

The structure is 33 ft (10.1 m) long with a longest span of 30 ft (9.1 m) and a deck 28 ft wide.

Who owns 27th ST SW over Creek?

It is owned by the County Highway Agency.