US Bridges

Nottawa Road over Wood Lake Drain

PoorPosted for load

St. Joseph County, Michigan · 1.5 MI North of Mendon · Structure no. 000000000010318

Built
1966
59 years old
Condition
Poor
inspected November 2024
Type
Slab
Wood or Timber
Length
50 ft
2 main spans
Daily traffic
1,455
2019 count
Owner
County
County Highway Agency

About this bridge

Nottawa Road over Wood Lake Drain is a wood or timber slab carrying Nottawa Road over Wood Lake Drain in St. Joseph County, Michigan. It was built in 1966, so it is 59 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. Its operating status is: posted for load restriction.

It carries about 1,455 vehicles a day, roughly 8% of them trucks, projected to reach 1,545 by 2039. The structure is 50 ft (15.2 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesNottawa Road
CrossesWood Lake Drain
Location1.5 MI North of Mendon
RouteCounty Highway 0
Coordinates42.02401, -85.44974
Functional classRural Major Collector

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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating40.3 US tons
Inventory rating28.2 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span25 ft (7.6 m)
Deck width31 ft (9.5 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,455 (2019)
Projected traffic1,545 by 2039
Trucks8%
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

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 Nottawa Road over Wood Lake Drain built?

It was built in 1966, making it 59 years old in 2025.

What condition is Nottawa Road over Wood Lake Drain 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 November 2024.

How much traffic does Nottawa Road over Wood Lake Drain carry?

About 1,455 vehicles per day (2019 count), of which roughly 8% are trucks.

How long is Nottawa Road over Wood Lake Drain?

The structure is 50 ft (15.2 m) long with a longest span of 25 ft (7.6 m) and a deck 31 ft wide.

Who owns Nottawa Road over Wood Lake Drain?

It is owned by the County Highway Agency.