US Bridges

Mallard Ave over Little Swan Creek

Good

Monroe County, Michigan · 0.8 M W of N Dixie HWY · Structure no. 000000000013390

Built
2001
24 years old
Condition
Good
inspected June 2024
Type
Culvert
Concrete
Length
22 ft
1 main span
Daily traffic
122
2012 count
Owner
County
County Highway Agency

About this bridge

Mallard Ave over Little Swan Creek is a concrete culvert carrying Mallard Ave over Little Swan Creek in Monroe County, Michigan. It was built in 2001, so it is 24 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 122 vehicles a day, roughly 2% of them trucks, projected to reach 350 by 2032. The structure is 22 ft (6.8 m) long. If it were closed, the detour would be 124.3 mi (200 km).

CarriesMallard Ave
CrossesLittle Swan Creek
Location0.8 M W of N Dixie HWY
RouteCounty Highway 0
Coordinates41.99017, -83.29881
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating38.3 US tons
Inventory rating32.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length22 ft (6.8 m)
Longest span20 ft (6.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic122 (2012)
Projected traffic350 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed124.3 mi (200 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 Mallard Ave over Little Swan Creek built?

It was built in 2001, making it 24 years old in 2025.

What condition is Mallard Ave over Little Swan Creek 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 June 2024.

How much traffic does Mallard Ave over Little Swan Creek carry?

About 122 vehicles per day (2012 count), of which roughly 2% are trucks.

How long is Mallard Ave over Little Swan Creek?

The structure is 22 ft (6.8 m) long with a longest span of 20 ft (6.2 m).

Who owns Mallard Ave over Little Swan Creek?

It is owned by the County Highway Agency.