US Bridges

Carroll Street over Bowman Creek

Fair

St. Joseph County, Indiana · 00.10 N Ewing Avenue · Structure no. 7100134

Built
1920
105 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
25 ft
1 main span
Daily traffic
300
2014 count
Owner
County
County Highway Agency

About this bridge

Carroll Street over Bowman Creek is a steel stringer/multi-beam or girder carrying Carroll Street over Bowman Creek in St. Joseph County, Indiana. It was built in 1920, so it is 105 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 5 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 300 vehicles a day, roughly 1% of them trucks, projected to reach 370 by 2034. The structure is 25 ft (7.6 m) long and 45 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesCarroll Street
CrossesBowman Creek
Location00.10 N Ewing Avenue
RouteCity Street 0
StateIndiana
Coordinates41.65205, -86.24606
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.3 US tons
Inventory rating35.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length25 ft (7.6 m)
Longest span23 ft (7 m)
Deck width45 ft (13.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2014)
Projected traffic370 by 2034
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$525,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Carroll Street over Bowman Creek built?

It was built in 1920, making it 105 years old in 2025.

What condition is Carroll Street over Bowman Creek 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 September 2024.

How much traffic does Carroll Street over Bowman Creek carry?

About 300 vehicles per day (2014 count), of which roughly 1% are trucks.

How long is Carroll Street over Bowman Creek?

The structure is 25 ft (7.6 m) long with a longest span of 23 ft (7 m) and a deck 45 ft wide.

Who owns Carroll Street over Bowman Creek?

It is owned by the County Highway Agency.