US Bridges

Mn 47 over Ford Brook

Good

Anoka County, Minnesota · 7.9 MI N of JCT TH 10 · Structure no. 02X02

Built
2000
25 years old
Condition
Good
inspected July 2023
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
5,200
2019 count
Owner
State
State Highway Agency

About this bridge

Mn 47 over Ford Brook is a concrete culvert carrying Mn 47 over Ford Brook in Anoka County, Minnesota. It was built in 2000, so it is 25 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 5,200 vehicles a day, roughly 2% of them trucks, projected to reach 5,000 by 2039. The structure is 23 ft (7 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesMn 47
CrossesFord Brook
Location7.9 MI N of JCT TH 10
RouteState Highway 47
CountyAnoka County
StateMinnesota
Coordinates45.31123, -93.40599
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.6 US tons
Inventory rating45 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 25 or greater
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 traffic5,200 (2019)
Projected traffic5,000 by 2039
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Ford Brook built?

It was built in 2000, making it 25 years old in 2025.

What condition is Mn 47 over Ford 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 Ford Brook carry?

About 5,200 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is Mn 47 over Ford Brook?

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

Who owns Mn 47 over Ford Brook?

It is owned by the State Highway Agency.