US Bridges

Allen Road over Blakely Drain

Good

Wayne County, Michigan · Brownstown N/Sibley · Structure no. 000000000012185

Built
2023
2 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
59 ft
1 main span
Daily traffic
24,837
1994 count
Owner
County
County Highway Agency

About this bridge

Allen Road over Blakely Drain is a steel stringer/multi-beam or girder carrying Allen Road over Blakely Drain in Wayne County, Michigan. It was built in 2023, so it is 2 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 24,837 vehicles a day, roughly 5% of them trucks, projected to reach 30,000 by 2015. The structure is 59 ft (18.1 m) long and 78 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesAllen Road
CrossesBlakely Drain
LocationBrownstown N/Sibley
RouteCounty Highway 2057
CountyWayne County
StateMichigan
Coordinates42.17068, -83.22716
Functional classUrban Other Principal Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation9: Superior to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.9 US tons
Inventory rating41.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadGreater than HL 93
Structure length59 ft (18.1 m)
Longest span54 ft (16.4 m)
Deck width78 ft (23.9 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,837 (1994)
Projected traffic30,000 by 2015
Trucks5%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 Allen Road over Blakely Drain built?

It was built in 2023, making it 2 years old in 2025.

What condition is Allen Road over Blakely 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 August 2023.

How much traffic does Allen Road over Blakely Drain carry?

About 24,837 vehicles per day (1994 count), of which roughly 5% are trucks.

How long is Allen Road over Blakely Drain?

The structure is 59 ft (18.1 m) long with a longest span of 54 ft (16.4 m) and a deck 78 ft wide.

Who owns Allen Road over Blakely Drain?

It is owned by the County Highway Agency.