US Bridges

Csah 31 over Promnade Trail

Good

Hennepin County, Minnesota · 0.7 MI N of JCT TH 494 · Structure no. 27B67

Built
2009
16 years old
Condition
Good
inspected April 2024
Type
Slab
Concrete
Length
30 ft
1 main span
Daily traffic
6,008
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Csah 31 over Promnade Trail is a concrete slab carrying Csah 31 over Promnade Trail in Hennepin County, Minnesota. It was built in 2009, so it is 16 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 6,008 vehicles a day, roughly 1% of them trucks, projected to reach 16,400 by 2041. The structure is 30 ft (9.2 m) long and 43 ft wide.

CarriesCsah 31
CrossesPromnade Trail
Location0.7 MI N of JCT TH 494
RouteCounty Highway 31
Coordinates44.87102, -93.32109
Functional classUrban Collector

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83.3 US tons
Inventory rating49.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length30 ft (9.2 m)
Longest span28 ft (8.5 m)
Deck width43 ft (13.1 m)
Roadway width31 ft (9.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,008 (2021)
Projected traffic16,400 by 2041
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesPedestrian / bicycle
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Csah 31 over Promnade Trail built?

It was built in 2009, making it 16 years old in 2025.

What condition is Csah 31 over Promnade Trail 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 April 2024.

How much traffic does Csah 31 over Promnade Trail carry?

About 6,008 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is Csah 31 over Promnade Trail?

The structure is 30 ft (9.2 m) long with a longest span of 28 ft (8.5 m) and a deck 43 ft wide.

Who owns Csah 31 over Promnade Trail?

It is owned by the City or Municipal Highway Agency.