US Bridges

Ennis Road over Drain #1

Good

Gratiot County, Michigan · Sec 29 Newark Twp · Structure no. 000000000003222

Built
1985
40 years old
Condition
Good
inspected July 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
62 ft
1 main span
Daily traffic
81
2004 count
Owner
County
County Highway Agency

About this bridge

Ennis Road over Drain #1 is a prestressed concrete box beam or girders - multiple carrying Ennis Road over Drain #1 in Gratiot County, Michigan. It was built in 1985, so it is 40 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 81 vehicles a day, projected to reach 101 by 2024. The structure is 62 ft (18.9 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesEnnis Road
CrossesDrain #1
LocationSec 29 Newark Twp
RouteCounty Highway 0
Coordinates43.21999, -84.68996
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.8 US tons
Inventory rating37 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20 + Mod
Structure length62 ft (18.9 m)
Longest span60 ft (18.2 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic81 (2004)
Projected traffic101 by 2024
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Ennis Road over Drain #1 built?

It was built in 1985, making it 40 years old in 2025.

What condition is Ennis Road over Drain #1 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 Ennis Road over Drain #1 carry?

About 81 vehicles per day (2004 count).

How long is Ennis Road over Drain #1?

The structure is 62 ft (18.9 m) long with a longest span of 60 ft (18.2 m) and a deck 31 ft wide.

Who owns Ennis Road over Drain #1?

It is owned by the County Highway Agency.