US Bridges

River Road over Boardman River

Good

Grand Traverse County, Michigan · 4.3M N & 0.5M W of Kingsl · Structure no. 000000000003060

Built
1962
63 years old
Condition
Good
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
90 ft
2 main spans
Daily traffic
2,586
2019 count
Owner
County
County Highway Agency

About this bridge

River Road over Boardman River is a prestressed concrete box beam or girders - multiple carrying River Road over Boardman River in Grand Traverse County, Michigan. It was built in 1962, so it is 63 years old, older 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 2,586 vehicles a day, roughly 7% of them trucks, projected to reach 3,000 by 2030. The structure is 90 ft (27.4 m) long and 30 ft wide.

CarriesRiver Road
CrossesBoardman River
Location4.3M N & 0.5M W of Kingsl
RouteCounty Highway 2844
Coordinates44.64699, -85.54787
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 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
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86.1 US tons
Inventory rating66.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length90 ft (27.4 m)
Longest span45 ft (13.7 m)
Deck width30 ft (9.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,586 (2019)
Projected traffic3,000 by 2030
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 River Road over Boardman River built?

It was built in 1962, making it 63 years old in 2025.

What condition is River Road over Boardman 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 August 2023.

How much traffic does River Road over Boardman River carry?

About 2,586 vehicles per day (2019 count), of which roughly 7% are trucks.

How long is River Road over Boardman River?

The structure is 90 ft (27.4 m) long with a longest span of 45 ft (13.7 m) and a deck 30 ft wide.

Who owns River Road over Boardman River?

It is owned by the County Highway Agency.