US Bridges

Parnall RD over Grand River

Fair

Jackson County, Michigan · 1 MI E of US 127 · Structure no. 000000000004478

Built
1991
34 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
60 ft
1 main span
Daily traffic
14,160
2004 count
Owner
County
County Highway Agency

About this bridge

Parnall RD over Grand River is a prestressed concrete stringer/multi-beam or girder carrying Parnall RD over Grand River in Jackson County, Michigan. It was built in 1991, so it is 34 years old, younger 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 14,160 vehicles a day, roughly 12% of them trucks, projected to reach 16,000 by 2020. The structure is 60 ft (18.2 m) long and 63 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesParnall RD
CrossesGrand River
Location1 MI E of US 127
RouteCounty Highway 2009
CountyJackson County
StateMichigan
Coordinates42.29109, -84.40552
Functional classUrban Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating87 US tons
Inventory rating52 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length60 ft (18.2 m)
Longest span58 ft (17.6 m)
Deck width63 ft (19.3 m)
Roadway width51 ft (15.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,160 (2004)
Projected traffic16,000 by 2020
Trucks12%
Lanes on structure4
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Parnall RD over Grand River built?

It was built in 1991, making it 34 years old in 2025.

What condition is Parnall RD over Grand 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 October 2024.

How much traffic does Parnall RD over Grand River carry?

About 14,160 vehicles per day (2004 count), of which roughly 12% are trucks.

How long is Parnall RD over Grand River?

The structure is 60 ft (18.2 m) long with a longest span of 58 ft (17.6 m) and a deck 63 ft wide.

Who owns Parnall RD over Grand River?

It is owned by the County Highway Agency.