US Bridges

Brott Road over Prouty Drain

Poor

Hillsdale County, Michigan · 0.1 Mile S of Wigent RD · Structure no. 000000000003328

Built
1948
77 years old
Condition
Poor
inspected November 2024
Type
Culvert
Steel
Length
20 ft
1 main span
Daily traffic
48
2014 count
Owner
County
County Highway Agency

About this bridge

Brott Road over Prouty Drain is a steel culvert carrying Brott Road over Prouty Drain in Hillsdale County, Michigan. It was built in 1948, so it is 77 years old, older than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 48 vehicles a day, projected to reach 79 by 2038. The structure is 20 ft (6.1 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesBrott Road
CrossesProuty Drain
Location0.1 Mile S of Wigent RD
RouteCounty Highway 0
CountyHillsdale County
StateMichigan
Coordinates41.79776, -84.78207
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating69.7 US tons
Inventory rating41.8 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length20 ft (6.1 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 traffic48 (2014)
Projected traffic79 by 2038
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$150,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Brott Road over Prouty Drain built?

It was built in 1948, making it 77 years old in 2025.

What condition is Brott Road over Prouty Drain in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2024.

How much traffic does Brott Road over Prouty Drain carry?

About 48 vehicles per day (2014 count).

How long is Brott Road over Prouty Drain?

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

Who owns Brott Road over Prouty Drain?

It is owned by the County Highway Agency.