US Bridges

Main ST Overpass over AMTRAK Railroad

PoorPosted for load

Van Buren County, Michigan · Mattawan Michigan · Structure no. 000000000010803

Built
1980
45 years old
Condition
Poor
inspected June 2024
Type
Box Beam or Girders - Multiple
Concrete
Length
141 ft
3 main spans
Daily traffic
5,023
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

Main ST Overpass over AMTRAK Railroad is a concrete box beam or girders - multiple carrying Main ST Overpass over AMTRAK Railroad in Van Buren County, Michigan. It was built in 1980, so it is 45 years old, younger 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 3 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 5,023 vehicles a day, roughly 6% of them trucks, projected to reach 7,464 by 2030. The structure is 141 ft (42.9 m) long and 41 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesMain ST Overpass
CrossesAMTRAK Railroad
LocationMattawan Michigan
RouteCity Street 1050
Coordinates42.20893, -85.78516
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
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating20.4 US tons
Inventory rating12.5 US tons

Structure

MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20 + Mod
Structure length141 ft (42.9 m)
Longest span61 ft (18.6 m)
Deck width41 ft (12.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,023 (2018)
Projected traffic7,464 by 2030
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed9.9 mi (16 km)
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 Main ST Overpass over AMTRAK Railroad built?

It was built in 1980, making it 45 years old in 2025.

What condition is Main ST Overpass over AMTRAK Railroad 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 2024.

How much traffic does Main ST Overpass over AMTRAK Railroad carry?

About 5,023 vehicles per day (2018 count), of which roughly 6% are trucks.

How long is Main ST Overpass over AMTRAK Railroad?

The structure is 141 ft (42.9 m) long with a longest span of 61 ft (18.6 m) and a deck 41 ft wide.

Who owns Main ST Overpass over AMTRAK Railroad?

It is owned by the City or Municipal Highway Agency.