US Bridges

Naomi Road over US-31

Good

Berrien County, Michigan · 5.7 MI N of Old US-31 · Structure no. 000000000012980

Built
2001
24 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
318 ft
4 main spans
Daily traffic
3,200
2001 count
Owner
State
State Highway Agency

About this bridge

Naomi Road over US-31 is a prestressed concrete stringer/multi-beam or girder carrying Naomi Road over US-31 in Berrien County, Michigan. It was built in 2001, so it is 24 years old, younger than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,200 vehicles a day, projected to reach 3,200 by 2010. The structure is 318 ft (96.9 m) long and 47 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesNaomi Road
CrossesUS-31
Location5.7 MI N of Old US-31
RouteCounty Highway 0
Coordinates42.04348, -86.37779
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81.8 US tons
Inventory rating34.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length318 ft (96.9 m)
Longest span119 ft (36.4 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,200 (2001)
Projected traffic3,200 by 2010
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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 Naomi Road over US-31 built?

It was built in 2001, making it 24 years old in 2025.

What condition is Naomi Road over US-31 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2024.

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

About 3,200 vehicles per day (2001 count).

How long is Naomi Road over US-31?

The structure is 318 ft (96.9 m) long with a longest span of 119 ft (36.4 m) and a deck 47 ft wide.

Who owns Naomi Road over US-31?

It is owned by the State Highway Agency.