US Bridges

M 1608 over Minnehaha Creek

PoorPosted for load

Hennepin County, Minnesota · 0.1 MI N of JCT TH 55 · Structure no. 4559

Built
1890
135 years old
Condition
Poor
inspected July 2024
Type
Arch - Deck
Masonry
Length
35 ft
1 main span
Daily traffic
4,334
2015 count
Owner
Local
Local Park, Forest, or Reservation Agency

About this bridge

M 1608 over Minnehaha Creek is a masonry arch - deck carrying M 1608 over Minnehaha Creek in Hennepin County, Minnesota. It was built in 1890, so it is 135 years old, older than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 4,334 vehicles a day, projected to reach 4,334 by 2029. The structure is 35 ft (10.7 m) long and 76 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesM 1608
CrossesMinnehaha Creek
Location0.1 MI N of JCT TH 55
RouteCity Street 1608
CountyHennepin County
StateMinnesota
Coordinates44.91554, -93.21257
Functional classUrban Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating18 US tons
Inventory rating9 US tons

Structure

Structure typeArch - Deck
MaterialMasonry
DeckNot applicable
Main spans1
Design loadUnknown
Structure length35 ft (10.7 m)
Longest span25 ft (7.6 m)
Deck width76 ft (23.2 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,334 (2015)
Projected traffic4,334 by 2029
Trucks—
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerLocal Park, Forest, or Reservation Agency
Maintained byLocal Park, Forest, or Reservation Agency
Historic statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$112 million
NavigationNo navigation control on waterway

Frequently asked questions

When was M 1608 over Minnehaha Creek built?

It was built in 1890, making it 135 years old in 2025.

What condition is M 1608 over Minnehaha Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.

How much traffic does M 1608 over Minnehaha Creek carry?

About 4,334 vehicles per day (2015 count).

How long is M 1608 over Minnehaha Creek?

The structure is 35 ft (10.7 m) long with a longest span of 25 ft (7.6 m) and a deck 76 ft wide.

Who owns M 1608 over Minnehaha Creek?

It is owned by the Local Park, Forest, or Reservation Agency.