US Bridges

N Union Street over Evans Creek

Poor

Lenawee County, Michigan · 283FT N of Chippewa ST · Structure no. 000000000005729

Built
1934
91 years old, rebuilt 1975
Condition
Poor
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
38 ft
1 main span
Daily traffic
2,657
2007 count
Owner
City
City or Municipal Highway Agency

About this bridge

N Union Street over Evans Creek is a prestressed concrete box beam or girders - multiple carrying N Union Street over Evans Creek in Lenawee County, Michigan. It was built in 1934 and reconstructed in 1975, so it is 91 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 2,657 vehicles a day, projected to reach 3,056 by 2027. The structure is 38 ft (11.5 m) long and 45 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesN Union Street
CrossesEvans Creek
Location283FT N of Chippewa ST
RouteCity Street 0
Coordinates42.01044, -83.95028
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating107.1 US tons
Inventory rating70 US tons

Structure

MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length38 ft (11.5 m)
Longest span34 ft (10.3 m)
Deck width45 ft (13.6 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,657 (2007)
Projected traffic3,056 by 2027
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was N Union Street over Evans Creek built?

It was built in 1934, making it 91 years old in 2025. It was reconstructed in 1975.

What condition is N Union Street over Evans Creek 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 September 2023.

How much traffic does N Union Street over Evans Creek carry?

About 2,657 vehicles per day (2007 count).

How long is N Union Street over Evans Creek?

The structure is 38 ft (11.5 m) long with a longest span of 34 ft (10.3 m) and a deck 45 ft wide.

Who owns N Union Street over Evans Creek?

It is owned by the City or Municipal Highway Agency.