US Bridges

M-13 over Milks Drain

Good

Saginaw County, Michigan · 7.8 MI S of M-46 · Structure no. 000000000009077

Built
2016
9 years old
Condition
Good
inspected July 2023
Type
Culvert
Concrete
Length
22 ft
1 main span
Daily traffic
5,700
2015 count
Owner
State
State Highway Agency

About this bridge

M-13 over Milks Drain is a concrete culvert carrying M-13 over Milks Drain in Saginaw County, Michigan. It was built in 2016, so it is 9 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 5,700 vehicles a day, roughly 6% of them trucks, projected to reach 6,300 by 2035. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesM-13
CrossesMilks Drain
Location7.8 MI S of M-46
RouteState Highway 13
Coordinates43.29984, -83.953
Functional classRural Minor Arterial

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 protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating76.1 US tons
Inventory rating58.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadGreater than HL 93
Structure length22 ft (6.7 m)
Longest span20 ft (6.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,700 (2015)
Projected traffic6,300 by 2035
Trucks6%
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

OwnerState Highway Agency
Maintained byState 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 M-13 over Milks Drain built?

It was built in 2016, making it 9 years old in 2025.

What condition is M-13 over Milks 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 July 2023.

How much traffic does M-13 over Milks Drain carry?

About 5,700 vehicles per day (2015 count), of which roughly 6% are trucks.

How long is M-13 over Milks Drain?

The structure is 22 ft (6.7 m) long with a longest span of 20 ft (6.1 m).

Who owns M-13 over Milks Drain?

It is owned by the State Highway Agency.