US Bridges

Middle Crossing RD over Dowagiac River

Poor

Cass County, Michigan · 2 MI NW of Dowagiac · Structure no. 000000000001443

Built
1961
64 years old
Condition
Poor
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
46 ft
1 main span
Daily traffic
1,688
2009 count
Owner
County
County Highway Agency

About this bridge

Middle Crossing RD over Dowagiac River is a prestressed concrete box beam or girders - multiple carrying Middle Crossing RD over Dowagiac River in Cass County, Michigan. It was built in 1961, so it is 64 years old, older than the Michigan average of 48.3 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.

It carries about 1,688 vehicles a day, projected to reach 2,000 by 2029. The structure is 46 ft (14 m) long and 28 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesMiddle Crossing RD
CrossesDowagiac River
Location2 MI NW of Dowagiac
RouteCounty Highway 1482
Coordinates42.00904, -86.14546
Functional classRural Major Collector

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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
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 rating60.4 US tons
Inventory rating34.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length46 ft (14 m)
Longest span43 ft (13.1 m)
Deck width28 ft (8.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,688 (2009)
Projected traffic2,000 by 2029
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 Middle Crossing RD over Dowagiac River built?

It was built in 1961, making it 64 years old in 2025.

What condition is Middle Crossing RD over Dowagiac River 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 October 2024.

How much traffic does Middle Crossing RD over Dowagiac River carry?

About 1,688 vehicles per day (2009 count).

How long is Middle Crossing RD over Dowagiac River?

The structure is 46 ft (14 m) long with a longest span of 43 ft (13.1 m) and a deck 28 ft wide.

Who owns Middle Crossing RD over Dowagiac River?

It is owned by the County Highway Agency.