US Bridges

Bertrand Road over US-31

Fair

Berrien County, Michigan · 0.8 MI N of Indiana State · Structure no. 000000000000886

Built
1977
48 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
360 ft
4 main spans
Daily traffic
2,067
1996 count
Owner
State
State Highway Agency

About this bridge

Bertrand Road over US-31 is a steel stringer/multi-beam or girder carrying Bertrand Road over US-31 in Berrien County, Michigan. It was built in 1977, so it is 48 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 2,067 vehicles a day, roughly 3% of them trucks, projected to reach 2,377 by 2016. The structure is 360 ft (109.7 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesBertrand Road
CrossesUS-31
Location0.8 MI N of Indiana State
RouteCounty Highway 2010
CountyBerrien County
StateMichigan
Coordinates41.7711, -86.3261
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.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating72.9 US tons
Inventory rating43.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length360 ft (109.7 m)
Longest span136 ft (41.4 m)
Deck width44 ft (13.4 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,067 (1996)
Projected traffic2,377 by 2016
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 proposedDeck replacement with only incidental widening
Estimated improvement cost$168,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Bertrand Road over US-31 built?

It was built in 1977, making it 48 years old in 2025.

What condition is Bertrand Road over US-31 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 2024.

How much traffic does Bertrand Road over US-31 carry?

About 2,067 vehicles per day (1996 count), of which roughly 3% are trucks.

How long is Bertrand Road over US-31?

The structure is 360 ft (109.7 m) long with a longest span of 136 ft (41.4 m) and a deck 44 ft wide.

Who owns Bertrand Road over US-31?

It is owned by the State Highway Agency.