US Bridges

S Gibraltar over Blakely Drain

Fair

Wayne County, Michigan · Gibraltar E/Jefferson · Structure no. 000000000011993

Built
1992
33 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete
Length
34 ft
1 main span
Daily traffic
2,926
1996 count
Owner
City
City or Municipal Highway Agency

About this bridge

S Gibraltar over Blakely Drain is a concrete culvert carrying S Gibraltar over Blakely Drain in Wayne County, Michigan. It was built in 1992, so it is 33 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 6 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 2,926 vehicles a day, roughly 1% of them trucks, projected to reach 1,751 by 2015. The structure is 34 ft (10.4 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesS Gibraltar
CrossesBlakely Drain
LocationGibraltar E/Jefferson
RouteCity Street 2057
Coordinates42.0854, -83.2057
Functional classUrban Collector

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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
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
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length34 ft (10.4 m)
Longest span33 ft (10 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,926 (1996)
Projected traffic1,751 by 2015
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 S Gibraltar over Blakely Drain built?

It was built in 1992, making it 33 years old in 2025.

What condition is S Gibraltar over Blakely 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 August 2023.

How much traffic does S Gibraltar over Blakely Drain carry?

About 2,926 vehicles per day (1996 count), of which roughly 1% are trucks.

How long is S Gibraltar over Blakely Drain?

The structure is 34 ft (10.4 m) long with a longest span of 33 ft (10 m).

Who owns S Gibraltar over Blakely Drain?

It is owned by the City or Municipal Highway Agency.