US Bridges

N County Line Road over Bush Creek Drain

Fair

Gratiot County, Michigan · Sec 2 Bethany Twp · Structure no. 000000000003188

Built
1978
47 years old
Condition
Fair
inspected July 2024
Type
Culvert
Steel
Length
45 ft
2 main spans
Daily traffic
129
2004 count
Owner
County
County Highway Agency

About this bridge

N County Line Road over Bush Creek Drain is a steel culvert carrying N County Line Road over Bush Creek Drain in Gratiot County, Michigan. It was built in 1978, so it is 47 years old, younger 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 129 vehicles a day, roughly 7% of them trucks, projected to reach 161 by 2024. The structure is 45 ft (13.7 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesN County Line Road
CrossesBush Creek Drain
LocationSec 2 Bethany Twp
RouteCounty Highway 0
CountyGratiot County
StateMichigan
Coordinates43.46621, -84.51008
Functional classRural Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.8 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length45 ft (13.7 m)
Longest span22 ft (6.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic129 (2004)
Projected traffic161 by 2024
Trucks7%
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 N County Line Road over Bush Creek Drain built?

It was built in 1978, making it 47 years old in 2025.

What condition is N County Line Road over Bush Creek 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 July 2024.

How much traffic does N County Line Road over Bush Creek Drain carry?

About 129 vehicles per day (2004 count), of which roughly 7% are trucks.

How long is N County Line Road over Bush Creek Drain?

The structure is 45 ft (13.7 m) long with a longest span of 22 ft (6.7 m).

Who owns N County Line Road over Bush Creek Drain?

It is owned by the County Highway Agency.