US Bridges

Hamilton Street over Buffalo Creek

PoorPosted for load

Bowman County, North Dakota · City of Scranton · Structure no. 000000006144090

Built
1958
67 years old
Condition
Poor
inspected October 2023
Type
Channel Beam
Concrete
Length
93 ft
3 main spans
Daily traffic
30
2019 count
Owner
County
County Highway Agency

About this bridge

Hamilton Street over Buffalo Creek is a concrete channel beam carrying Hamilton Street over Buffalo Creek in Bowman County, North Dakota. It was built in 1958, so it is 67 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 30 vehicles a day, projected to reach 30 by 2039. The structure is 93 ft (28.3 m) long and 26 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesHamilton Street
CrossesBuffalo Creek
LocationCity of Scranton
RouteCity Street 0
Coordinates46.14894, -103.14743
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating6 US tons
Inventory rating5 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckOther
Main spans3
Design loadUnknown
Structure length93 ft (28.3 m)
Longest span30 ft (9.1 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2019)
Projected traffic30 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Hamilton Street over Buffalo Creek built?

It was built in 1958, making it 67 years old in 2025.

What condition is Hamilton Street over Buffalo Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2023.

How much traffic does Hamilton Street over Buffalo Creek carry?

About 30 vehicles per day (2019 count).

How long is Hamilton Street over Buffalo Creek?

The structure is 93 ft (28.3 m) long with a longest span of 30 ft (9.1 m) and a deck 26 ft wide.

Who owns Hamilton Street over Buffalo Creek?

It is owned by the County Highway Agency.