US Bridges

Mn 1 over Stream

Fair

Marshall County, Minnesota · 5.1 MI E of JCT TH 75 · Structure no. 6008

Built
1930
95 years old
Condition
Fair
inspected September 2023
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
1,500
2018 count
Owner
State
State Highway Agency

About this bridge

Mn 1 over Stream is a concrete culvert carrying Mn 1 over Stream in Marshall County, Minnesota. It was built in 1930, so it is 95 years old, older than the Minnesota average of 38.5 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 1,500 vehicles a day, roughly 15% of them trucks, projected to reach 1,350 by 2038. The structure is 23 ft (7 m) long. If it were closed, the detour would be 8.7 mi (14 km).

CarriesMn 1
CrossesStream
Location5.1 MI E of JCT TH 75
RouteState Highway 1
Coordinates48.1954, -96.66053
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.2 US tons
Inventory rating32.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,500 (2018)
Projected traffic1,350 by 2038
Trucks15%
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

OwnerState Highway Agency
Maintained byState 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 Mn 1 over Stream built?

It was built in 1930, making it 95 years old in 2025.

What condition is Mn 1 over Stream 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 Mn 1 over Stream carry?

About 1,500 vehicles per day (2018 count), of which roughly 15% are trucks.

How long is Mn 1 over Stream?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m).

Who owns Mn 1 over Stream?

It is owned by the State Highway Agency.