US Bridges

Nimtz Parkway over US 31 Nb/Sb

Fair

St. Joseph County, Indiana · 00.55 S I-90 · Structure no. 010215

Built
1975
50 years old, rebuilt 2013
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
229 ft
2 main spans
Daily traffic
3,998
2009 count
Owner
State
State Highway Agency

About this bridge

Nimtz Parkway over US 31 Nb/Sb is a steel continuous stringer/multi-beam or girder carrying Nimtz Parkway over US 31 Nb/Sb in St. Joseph County, Indiana. It was built in 1975 and reconstructed in 2013, so it is 50 years old, older than the Indiana average of 46.6 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 3,998 vehicles a day, roughly 5% of them trucks, projected to reach 5,127 by 2032. The structure is 229 ft (69.9 m) long and 47 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNimtz Parkway
CrossesUS 31 Nb/Sb
Location00.55 S I-90
RouteCity Street 0
CountySt. Joseph County
StateIndiana
Coordinates41.72261, -86.33932
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.9 US tons
Inventory rating41.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length229 ft (69.9 m)
Longest span114 ft (34.7 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,998 (2009)
Projected traffic5,127 by 2032
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 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 Nimtz Parkway over US 31 Nb/Sb built?

It was built in 1975, making it 50 years old in 2025. It was reconstructed in 2013.

What condition is Nimtz Parkway over US 31 Nb/Sb 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 July 2023.

How much traffic does Nimtz Parkway over US 31 Nb/Sb carry?

About 3,998 vehicles per day (2009 count), of which roughly 5% are trucks.

How long is Nimtz Parkway over US 31 Nb/Sb?

The structure is 229 ft (69.9 m) long with a longest span of 114 ft (34.7 m) and a deck 47 ft wide.

Who owns Nimtz Parkway over US 31 Nb/Sb?

It is owned by the State Highway Agency.