US Bridges

Jackson RD over I-69

Fair

Calhoun County, Michigan · 1.6 MI N of Branch Col · Structure no. 000000000001224

Built
1968
57 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
240 ft
4 main spans
Daily traffic
777
1992 count
Owner
State
State Highway Agency

About this bridge

Jackson RD over I-69 is a steel stringer/multi-beam or girder carrying Jackson RD over I-69 in Calhoun County, Michigan. It was built in 1968, so it is 57 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 5 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 777 vehicles a day, roughly 3% of them trucks, projected to reach 963 by 2000. The structure is 240 ft (73.2 m) long and 34 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesJackson RD
CrossesI-69
Location1.6 MI N of Branch Col
RouteCounty Highway 0
CountyCalhoun County
StateMichigan
Coordinates42.09183, -84.99734
Functional classRural Minor 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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating41.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length240 ft (73.2 m)
Longest span85 ft (25.9 m)
Deck width34 ft (10.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic777 (1992)
Projected traffic963 by 2000
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Jackson RD over I-69 built?

It was built in 1968, making it 57 years old in 2025.

What condition is Jackson RD over I-69 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 June 2023.

How much traffic does Jackson RD over I-69 carry?

About 777 vehicles per day (1992 count), of which roughly 3% are trucks.

How long is Jackson RD over I-69?

The structure is 240 ft (73.2 m) long with a longest span of 85 ft (25.9 m) and a deck 34 ft wide.

Who owns Jackson RD over I-69?

It is owned by the State Highway Agency.