US Bridges

Csah 73 over Minnehaha Creek

Good

Hennepin County, Minnesota · 0.2 MI N of JCT Csah 5 · Structure no. 27672

Built
1987
38 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
103 ft
1 main span
Daily traffic
11,668
2021 count
Owner
County
County Highway Agency

About this bridge

Csah 73 over Minnehaha Creek is a prestressed concrete stringer/multi-beam or girder carrying Csah 73 over Minnehaha Creek in Hennepin County, Minnesota. It was built in 1987, so it is 38 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 11,668 vehicles a day, projected to reach 16,700 by 2041. The structure is 103 ft (31.5 m) long and 64 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCsah 73
CrossesMinnehaha Creek
Location0.2 MI N of JCT Csah 5
RouteCounty Highway 73
Coordinates44.94763, -93.42107
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 protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.2 US tons
Inventory rating40.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length103 ft (31.5 m)
Longest span98 ft (30 m)
Deck width64 ft (19.6 m)
Roadway width52 ft (15.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,668 (2021)
Projected traffic16,700 by 2041
Trucks—
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Csah 73 over Minnehaha Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is Csah 73 over Minnehaha Creek 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 2024.

How much traffic does Csah 73 over Minnehaha Creek carry?

About 11,668 vehicles per day (2021 count).

How long is Csah 73 over Minnehaha Creek?

The structure is 103 ft (31.5 m) long with a longest span of 98 ft (30 m) and a deck 64 ft wide.

Who owns Csah 73 over Minnehaha Creek?

It is owned by the County Highway Agency.