US Bridges

Huron River Drive over Pittsfield Ann Arbor Drn

Fair

Washtenaw County, Michigan · Ann Arbor Twp Sec 35 · Structure no. 000000000010975

Built
1979
46 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
54 ft
1 main span
Daily traffic
5,954
2016 count
Owner
City
City or Municipal Highway Agency

About this bridge

Huron River Drive over Pittsfield Ann Arbor Drn is a prestressed concrete stringer/multi-beam or girder carrying Huron River Drive over Pittsfield Ann Arbor Drn in Washtenaw County, Michigan. It was built in 1979, so it is 46 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 5,954 vehicles a day, roughly 1% of them trucks, projected to reach 6,847 by 2036. The structure is 54 ft (16.5 m) long and 41 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesHuron River Drive
CrossesPittsfield Ann Arbor Drn
LocationAnn Arbor Twp Sec 35
RouteCounty Highway 2006
CountyWashtenaw County
StateMichigan
Coordinates42.26514, -83.68593
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: 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 rating96.8 US tons
Inventory rating34 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length54 ft (16.5 m)
Longest span54 ft (16.5 m)
Deck width41 ft (12.4 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,954 (2016)
Projected traffic6,847 by 2036
Trucks1%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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$340,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Huron River Drive over Pittsfield Ann Arbor Drn built?

It was built in 1979, making it 46 years old in 2025.

What condition is Huron River Drive over Pittsfield Ann Arbor Drn 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 October 2024.

How much traffic does Huron River Drive over Pittsfield Ann Arbor Drn carry?

About 5,954 vehicles per day (2016 count), of which roughly 1% are trucks.

How long is Huron River Drive over Pittsfield Ann Arbor Drn?

The structure is 54 ft (16.5 m) long with a longest span of 54 ft (16.5 m) and a deck 41 ft wide.

Who owns Huron River Drive over Pittsfield Ann Arbor Drn?

It is owned by the City or Municipal Highway Agency.