US Bridges

Howard RD over N Br Tobacco River

Good

Gladwin County, Michigan · 20 Rods E of Grout RD · Structure no. 000000000002924

Built
1988
37 years old
Condition
Good
inspected March 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
60 ft
1 main span
Daily traffic
210
2017 count
Owner
County
County Highway Agency

About this bridge

Howard RD over N Br Tobacco River is a prestressed concrete box beam or girders - multiple carrying Howard RD over N Br Tobacco River in Gladwin County, Michigan. It was built in 1988, so it is 37 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 210 vehicles a day, roughly 5% of them trucks, projected to reach 220 by 2037. The structure is 60 ft (18.3 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesHoward RD
CrossesN Br Tobacco River
Location20 Rods E of Grout RD
RouteCounty Highway 0
Coordinates43.91554, -84.54274
Functional classRural Minor Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 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 rating52.9 US tons
Inventory rating40.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20 + Mod
Structure length60 ft (18.3 m)
Longest span60 ft (18.2 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic210 (2017)
Projected traffic220 by 2037
Trucks5%
Lanes on structure2
Traffic directionTwo-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 Howard RD over N Br Tobacco River built?

It was built in 1988, making it 37 years old in 2025.

What condition is Howard RD over N Br Tobacco 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 March 2024.

How much traffic does Howard RD over N Br Tobacco River carry?

About 210 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is Howard RD over N Br Tobacco River?

The structure is 60 ft (18.3 m) long with a longest span of 60 ft (18.2 m) and a deck 31 ft wide.

Who owns Howard RD over N Br Tobacco River?

It is owned by the County Highway Agency.