US Bridges

SR 23 over US 20 & US 31

Good

St. Joseph County, Indiana · 03.07 S SR 933 · Structure no. 076830

Built
2004
21 years old, rebuilt 2021
Condition
Good
inspected September 2024
Type
Tee Beam
Prestressed Concrete Continuous
Length
204 ft
2 main spans
Daily traffic
39,562
2021 count
Owner
State
State Highway Agency

About this bridge

SR 23 over US 20 & US 31 is a prestressed concrete continuous tee beam carrying SR 23 over US 20 & US 31 in St. Joseph County, Indiana. It was built in 2004 and reconstructed in 2021, so it is 21 years old, younger than the Indiana average of 46.6 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 39,562 vehicles a day, roughly 21% of them trucks, projected to reach 19,000 by 2030. The structure is 204 ft (62.1 m) long and 97 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSR 23
CrossesUS 20 & US 31
Location03.07 S SR 933
RouteState Highway 23
CountySt. Joseph County
StateIndiana
Coordinates41.64112, -86.2976
Functional classUrban Other Principal Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2024
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 rating34.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length204 ft (62.1 m)
Longest span101 ft (30.7 m)
Deck width97 ft (29.5 m)
Roadway width78 ft (23.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic39,562 (2021)
Projected traffic19,000 by 2030
Trucks21%
Lanes on structure5
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 SR 23 over US 20 & US 31 built?

It was built in 2004, making it 21 years old in 2025. It was reconstructed in 2021.

What condition is SR 23 over US 20 & 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 September 2024.

How much traffic does SR 23 over US 20 & US 31 carry?

About 39,562 vehicles per day (2021 count), of which roughly 21% are trucks.

How long is SR 23 over US 20 & US 31?

The structure is 204 ft (62.1 m) long with a longest span of 101 ft (30.7 m) and a deck 97 ft wide.

Who owns SR 23 over US 20 & US 31?

It is owned by the State Highway Agency.