US Bridges

Neaman Road over Prairie River

Fair

St. Joseph County, Michigan · 2 MI SE of Three Rivers · Structure no. 000000000010359

Built
2001
24 years old
Condition
Fair
inspected November 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
125 ft
2 main spans
Daily traffic
165
1997 count
Owner
County
County Highway Agency

About this bridge

Neaman Road over Prairie River is a prestressed concrete box beam or girders - multiple carrying Neaman Road over Prairie River in St. Joseph County, Michigan. It was built in 2001, so it is 24 years old, younger than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 165 vehicles a day, roughly 5% of them trucks, projected to reach 245 by 2017. The structure is 125 ft (38.1 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesNeaman Road
CrossesPrairie River
Location2 MI SE of Three Rivers
RouteCounty Highway 0
CountySt. Joseph County
StateMichigan
Coordinates41.90303, -85.59054
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.9 US tons
Inventory rating40.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length125 ft (38.1 m)
Longest span62 ft (19 m)
Deck width31 ft (9.6 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic165 (1997)
Projected traffic245 by 2017
Trucks5%
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Neaman Road over Prairie River built?

It was built in 2001, making it 24 years old in 2025.

What condition is Neaman Road over Prairie River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2023.

How much traffic does Neaman Road over Prairie River carry?

About 165 vehicles per day (1997 count), of which roughly 5% are trucks.

How long is Neaman Road over Prairie River?

The structure is 125 ft (38.1 m) long with a longest span of 62 ft (19 m) and a deck 31 ft wide.

Who owns Neaman Road over Prairie River?

It is owned by the County Highway Agency.