US Bridges

Elm Road over Mallory Lake Drain

PoorClosed to traffic

Hillsdale County, Michigan · 0.1 Mile N of Egypt Road · Structure no. 000000000003348

Built
1910
115 years old, rebuilt 1950
Condition
Poor
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
22 ft
1 main span
Daily traffic
46
2014 count
Owner
County
County Highway Agency

About this bridge

Elm Road over Mallory Lake Drain is a steel stringer/multi-beam or girder carrying Elm Road over Mallory Lake Drain in Hillsdale County, Michigan. It was built in 1910 and reconstructed in 1950, so it is 115 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 2 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: closed to all traffic.

It carries about 46 vehicles a day, projected to reach 75 by 2038. The structure is 22 ft (6.7 m) long and 20 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesElm Road
CrossesMallory Lake Drain
Location0.1 Mile N of Egypt Road
RouteCounty Highway 0
Coordinates41.82807, -84.38084
Functional classRural 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure2 CriticalAdvanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating6.8 US tons
Inventory rating4 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadH 10
Structure length22 ft (6.7 m)
Longest span20 ft (6.1 m)
Deck width20 ft (6.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic46 (2014)
Projected traffic75 by 2038
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$100,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Elm Road over Mallory Lake Drain built?

It was built in 1910, making it 115 years old in 2025. It was reconstructed in 1950.

What condition is Elm Road over Mallory 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 2023.

How much traffic does Elm Road over Mallory Lake Drain carry?

About 46 vehicles per day (2014 count).

How long is Elm Road over Mallory Lake Drain?

The structure is 22 ft (6.7 m) long with a longest span of 20 ft (6.1 m) and a deck 20 ft wide.

Who owns Elm Road over Mallory Lake Drain?

It is owned by the County Highway Agency.