US Bridges

Kalamo Road over I-69

Fair

Eaton County, Michigan · 1.5 MI SE of Charlotte · Structure no. 000000000002256

Built
1971
54 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
268 ft
2 main spans
Daily traffic
160
1977 count
Owner
State
State Highway Agency

About this bridge

Kalamo Road over I-69 is a steel stringer/multi-beam or girder carrying Kalamo Road over I-69 in Eaton County, Michigan. It was built in 1971, so it is 54 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 160 vehicles a day, roughly 3% of them trucks, projected to reach 120 by 1988. The structure is 268 ft (81.7 m) long and 38 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesKalamo Road
CrossesI-69
Location1.5 MI SE of Charlotte
RouteCounty Highway 0
Coordinates42.53858, -84.82074
Functional classUrban 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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.2 US tons
Inventory rating37.1 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length268 ft (81.7 m)
Longest span137 ft (41.7 m)
Deck width38 ft (11.7 m)
Roadway width34 ft (10.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic160 (1977)
Projected traffic120 by 1988
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 Kalamo Road over I-69 built?

It was built in 1971, making it 54 years old in 2025.

What condition is Kalamo Road 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 May 2023.

How much traffic does Kalamo Road over I-69 carry?

About 160 vehicles per day (1977 count), of which roughly 3% are trucks.

How long is Kalamo Road over I-69?

The structure is 268 ft (81.7 m) long with a longest span of 137 ft (41.7 m) and a deck 38 ft wide.

Who owns Kalamo Road over I-69?

It is owned by the State Highway Agency.