US Bridges

Hanover Road over S Branch Kalamazoo River

PoorClosed to traffic

Jackson County, Michigan · 2.5 M W & 1.0 M S Pulaski · Structure no. 000000000004526

Built
1938
87 years old
Condition
Poor
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
37 ft
1 main span
Daily traffic
150
2002 count
Owner
County
County Highway Agency

About this bridge

Hanover Road over S Branch Kalamazoo River is a steel stringer/multi-beam or girder carrying Hanover Road over S Branch Kalamazoo River in Jackson County, Michigan. It was built in 1938, so it is 87 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 2 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: closed to all traffic.

It carries about 150 vehicles a day, projected to reach 175 by 2022. The structure is 37 ft (11.2 m) long and 29 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesHanover Road
CrossesS Branch Kalamazoo River
Location2.5 M W & 1.0 M S Pulaski
RouteCounty Highway 3812
Coordinates42.09794, -84.69195
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure2 CriticalAdvanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating21.1 US tons
Inventory rating12.5 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length37 ft (11.2 m)
Longest span35 ft (10.6 m)
Deck width29 ft (8.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2002)
Projected traffic175 by 2022
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$125,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Hanover Road over S Branch Kalamazoo River built?

It was built in 1938, making it 87 years old in 2025.

What condition is Hanover Road over S Branch Kalamazoo 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 June 2023.

How much traffic does Hanover Road over S Branch Kalamazoo River carry?

About 150 vehicles per day (2002 count).

How long is Hanover Road over S Branch Kalamazoo River?

The structure is 37 ft (11.2 m) long with a longest span of 35 ft (10.6 m) and a deck 29 ft wide.

Who owns Hanover Road over S Branch Kalamazoo River?

It is owned by the County Highway Agency.