US Bridges

Mn 47 over Seelye Brook

Good

Anoka County, Minnesota · 13.0 MI N of JCT TH 10 · Structure no. 02049

Built
2001
24 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
52 ft
1 main span
Daily traffic
6,454
2022 count
Owner
State
State Highway Agency

About this bridge

Mn 47 over Seelye Brook is a prestressed concrete stringer/multi-beam or girder carrying Mn 47 over Seelye Brook in Anoka County, Minnesota. It was built in 2001, so it is 24 years old, younger than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 6,454 vehicles a day, roughly 3% of them trucks, projected to reach 5,900 by 2042. The structure is 52 ft (16 m) long and 43 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesMn 47
CrossesSeelye Brook
Location13.0 MI N of JCT TH 10
RouteState Highway 47
CountyAnoka County
StateMinnesota
Coordinates45.38019, -93.38103
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 alignment8: Equal to present desirable criteria
Operating rating84.4 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length52 ft (16 m)
Longest span51 ft (15.4 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,454 (2022)
Projected traffic5,900 by 2042
Trucks3%
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

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 47 over Seelye Brook built?

It was built in 2001, making it 24 years old in 2025.

What condition is Mn 47 over Seelye Brook in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.

How much traffic does Mn 47 over Seelye Brook carry?

About 6,454 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Mn 47 over Seelye Brook?

The structure is 52 ft (16 m) long with a longest span of 51 ft (15.4 m) and a deck 43 ft wide.

Who owns Mn 47 over Seelye Brook?

It is owned by the State Highway Agency.