US Bridges

Longnecker over Little Portage Creek

Good

St. Joseph County, Michigan · 4 MI NE of Mendon · Structure no. 000000000010379

Built
2008
17 years old
Condition
Good
inspected November 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
56 ft
1 main span
Daily traffic
88
2003 count
Owner
County
County Highway Agency

About this bridge

Longnecker over Little Portage Creek is a prestressed concrete box beam or girders - multiple carrying Longnecker over Little Portage Creek in St. Joseph County, Michigan. It was built in 2008, so it is 17 years old, younger than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 88 vehicles a day, roughly 5% of them trucks, projected to reach 152 by 2028. The structure is 56 ft (17.1 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesLongnecker
CrossesLittle Portage Creek
Location4 MI NE of Mendon
RouteCounty Highway 0
CountySt. Joseph County
StateMichigan
Coordinates42.05746, -85.41238
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
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 evaluation7: Better than present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating71.1 US tons
Inventory rating42.5 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length56 ft (17.1 m)
Longest span51 ft (15.4 m)
Deck width33 ft (10.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic88 (2003)
Projected traffic152 by 2028
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 Longnecker over Little Portage Creek built?

It was built in 2008, making it 17 years old in 2025.

What condition is Longnecker over Little Portage Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2023.

How much traffic does Longnecker over Little Portage Creek carry?

About 88 vehicles per day (2003 count), of which roughly 5% are trucks.

How long is Longnecker over Little Portage Creek?

The structure is 56 ft (17.1 m) long with a longest span of 51 ft (15.4 m) and a deck 33 ft wide.

Who owns Longnecker over Little Portage Creek?

It is owned by the County Highway Agency.