US Bridges

Mn 336 over BNSF RR

Fair

Clay County, Minnesota · 0.19 MI S of JCT TH 10 · Structure no. 14010

Built
2002
23 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
125 ft
1 main span
Daily traffic
5,550
2020 count
Owner
State
State Highway Agency

About this bridge

Mn 336 over BNSF RR is a prestressed concrete stringer/multi-beam or girder carrying Mn 336 over BNSF RR in Clay County, Minnesota. It was built in 2002, so it is 23 years old, younger 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 5,550 vehicles a day, roughly 21% of them trucks, projected to reach 5,450 by 2040. The structure is 125 ft (38 m) long and 45 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesMn 336
CrossesBNSF RR
Location0.19 MI S of JCT TH 10
RouteState Highway 336
CountyClay County
StateMinnesota
Coordinates46.87402, -96.64967
Functional classUrban Other Principal 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating50.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length125 ft (38 m)
Longest span120 ft (36.6 m)
Deck width45 ft (13.8 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,550 (2020)
Projected traffic5,450 by 2040
Trucks21%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Mn 336 over BNSF RR built?

It was built in 2002, making it 23 years old in 2025.

What condition is Mn 336 over BNSF RR 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 336 over BNSF RR carry?

About 5,550 vehicles per day (2020 count), of which roughly 21% are trucks.

How long is Mn 336 over BNSF RR?

The structure is 125 ft (38 m) long with a longest span of 120 ft (36.6 m) and a deck 45 ft wide.

Who owns Mn 336 over BNSF RR?

It is owned by the State Highway Agency.