US Bridges

Morrice Road over Maple River

Fair

Shiawassee County, Michigan · 7 Miles North of Morrice · Structure no. 000000000009812

Built
1956
69 years old
Condition
Fair
inspected April 2024
Type
Slab
Concrete
Length
60 ft
2 main spans
Daily traffic
1,662
2011 count
Owner
County
County Highway Agency

About this bridge

Morrice Road over Maple River is a concrete slab carrying Morrice Road over Maple River in Shiawassee County, Michigan. It was built in 1956, so it is 69 years old, older 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 1,662 vehicles a day, roughly 10% of them trucks, projected to reach 2,470 by 2031. The structure is 60 ft (18.2 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesMorrice Road
CrossesMaple River
Location7 Miles North of Morrice
RouteCounty Highway 7643
CountyShiawassee County
StateMichigan
Coordinates42.94692, -84.18352
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55 US tons
Inventory rating32.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length60 ft (18.2 m)
Longest span27 ft (8.2 m)
Deck width30 ft (9.2 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,662 (2011)
Projected traffic2,470 by 2031
Trucks10%
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$164,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Morrice Road over Maple River built?

It was built in 1956, making it 69 years old in 2025.

What condition is Morrice Road over Maple River 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 April 2024.

How much traffic does Morrice Road over Maple River carry?

About 1,662 vehicles per day (2011 count), of which roughly 10% are trucks.

How long is Morrice Road over Maple River?

The structure is 60 ft (18.2 m) long with a longest span of 27 ft (8.2 m) and a deck 30 ft wide.

Who owns Morrice Road over Maple River?

It is owned by the County Highway Agency.