US Bridges

Grendlund Road over Maple River

Good

Gratiot County, Michigan · Sec 21-28 Elba Twp · Structure no. 000000000003190

Built
1990
35 years old
Condition
Good
inspected July 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
70 ft
1 main span
Daily traffic
116
2004 count
Owner
County
County Highway Agency

About this bridge

Grendlund Road over Maple River is a prestressed concrete box beam or girders - multiple carrying Grendlund Road over Maple River in Gratiot County, Michigan. It was built in 1990, so it is 35 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 116 vehicles a day, projected to reach 143 by 2024. The structure is 70 ft (21.3 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesGrendlund Road
CrossesMaple River
LocationSec 21-28 Elba Twp
RouteCounty Highway 0
Coordinates43.13955, -84.42789
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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.4 US tons
Inventory rating45.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length70 ft (21.3 m)
Longest span70 ft (21.3 m)
Deck width31 ft (9.5 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic116 (2004)
Projected traffic143 by 2024
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Grendlund Road over Maple River built?

It was built in 1990, making it 35 years old in 2025.

What condition is Grendlund Road over Maple River 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 July 2024.

How much traffic does Grendlund Road over Maple River carry?

About 116 vehicles per day (2004 count).

How long is Grendlund Road over Maple River?

The structure is 70 ft (21.3 m) long with a longest span of 70 ft (21.3 m) and a deck 31 ft wide.

Who owns Grendlund Road over Maple River?

It is owned by the County Highway Agency.