US Bridges

Tilch RD over Dunn-Banister Drain

Good

Macomb County, Michigan · 0.5 Mile N of M-59 · Structure no. 000000000006361

Built
1979
46 years old
Condition
Good
inspected May 2023
Type
Culvert
Steel
Length
55 ft
3 main spans
Daily traffic
4,490
2008 count
Owner
County
County Highway Agency

About this bridge

Tilch RD over Dunn-Banister Drain is a steel culvert carrying Tilch RD over Dunn-Banister Drain in Macomb County, Michigan. It was built in 1979, so it is 46 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 4,490 vehicles a day, roughly 2% of them trucks, projected to reach 6,672 by 2028. The structure is 55 ft (16.9 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesTilch RD
CrossesDunn-Banister Drain
Location0.5 Mile N of M-59
RouteCounty Highway 0
Coordinates42.6346, -82.9659
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating68.2 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadH 20
Structure length55 ft (16.9 m)
Longest span16 ft (5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,490 (2008)
Projected traffic6,672 by 2028
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 Tilch RD over Dunn-Banister Drain built?

It was built in 1979, making it 46 years old in 2025.

What condition is Tilch RD over Dunn-Banister Drain 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 May 2023.

How much traffic does Tilch RD over Dunn-Banister Drain carry?

About 4,490 vehicles per day (2008 count), of which roughly 2% are trucks.

How long is Tilch RD over Dunn-Banister Drain?

The structure is 55 ft (16.9 m) long with a longest span of 16 ft (5 m).

Who owns Tilch RD over Dunn-Banister Drain?

It is owned by the County Highway Agency.