US Bridges

Huron Line Road over Brookfield Drain

Good

Huron County, Michigan · Sec 33 Brookfield Twp · Structure no. 000000000003567

Built
2008
17 years old
Condition
Good
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
70
2009 count
Owner
County
County Highway Agency

About this bridge

Huron Line Road over Brookfield Drain is a prestressed concrete box beam or girders - multiple carrying Huron Line Road over Brookfield Drain in Huron County, Michigan. It was built in 2008, so it is 17 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 70 vehicles a day, roughly 10% of them trucks, projected to reach 125 by 2029. The structure is 40 ft (12.2 m) long and 31 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

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CarriesHuron Line Road
CrossesBrookfield Drain
LocationSec 33 Brookfield Twp
RouteCounty Highway 0
CountyHuron County
StateMichigan
Coordinates43.67039, -83.31292
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating77.8 US tons
Inventory rating46.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span39 ft (11.8 m)
Deck width31 ft (9.5 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2009)
Projected traffic125 by 2029
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 Huron Line Road over Brookfield Drain built?

It was built in 2008, making it 17 years old in 2025.

What condition is Huron Line Road over Brookfield 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 October 2023.

How much traffic does Huron Line Road over Brookfield Drain carry?

About 70 vehicles per day (2009 count), of which roughly 10% are trucks.

How long is Huron Line Road over Brookfield Drain?

The structure is 40 ft (12.2 m) long with a longest span of 39 ft (11.8 m) and a deck 31 ft wide.

Who owns Huron Line Road over Brookfield Drain?

It is owned by the County Highway Agency.