US Bridges

M-13 over Railroad Drain

Fair

Bay County, Michigan · 0.4 MI S of Linwood RD · Structure no. 000000000000594

Built
1950
75 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete
Length
26 ft
1 main span
Daily traffic
15,061
2007 count
Owner
State
State Highway Agency

About this bridge

M-13 over Railroad Drain is a concrete culvert carrying M-13 over Railroad Drain in Bay County, Michigan. It was built in 1950, so it is 75 years old, older than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 15,061 vehicles a day, roughly 3% of them trucks, projected to reach 16,732 by 2018. The structure is 26 ft (8 m) long.

Location

Open in Google Maps
CarriesM-13
CrossesRailroad Drain
Location0.4 MI S of Linwood RD
RouteState Highway 13
CountyBay County
StateMichigan
Coordinates43.73317, -83.97508
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.1 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length26 ft (8 m)
Longest span23 ft (6.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,061 (2007)
Projected traffic16,732 by 2018
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 Railroad Drain built?

It was built in 1950, making it 75 years old in 2025.

What condition is M-13 over Railroad Drain in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2023.

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

About 15,061 vehicles per day (2007 count), of which roughly 3% are trucks.

How long is M-13 over Railroad Drain?

The structure is 26 ft (8 m) long with a longest span of 23 ft (6.9 m).

Who owns M-13 over Railroad Drain?

It is owned by the State Highway Agency.