US Bridges

SR 18 over Bachelor Run

Good

Carroll County, Indiana · 02.08 E SR 75 · Structure no. 004670

Built
1998
27 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
90 ft
1 main span
Daily traffic
3,213
2021 count
Owner
State
State Highway Agency

About this bridge

SR 18 over Bachelor Run is a prestressed concrete stringer/multi-beam or girder carrying SR 18 over Bachelor Run in Carroll County, Indiana. It was built in 1998, so it is 27 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 3,213 vehicles a day, roughly 10% of them trucks, projected to reach 6,001 by 2030. The structure is 90 ft (27.4 m) long and 46 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSR 18
CrossesBachelor Run
Location02.08 E SR 75
RouteState Highway 18
CountyCarroll County
StateIndiana
Coordinates40.54688, -86.49005
Functional classRural Major 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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.8 US tons
Inventory rating42.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length90 ft (27.4 m)
Longest span88 ft (26.9 m)
Deck width46 ft (14.1 m)
Roadway width43 ft (13.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,213 (2021)
Projected traffic6,001 by 2030
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 18 over Bachelor Run built?

It was built in 1998, making it 27 years old in 2025.

What condition is SR 18 over Bachelor Run 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 July 2024.

How much traffic does SR 18 over Bachelor Run carry?

About 3,213 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is SR 18 over Bachelor Run?

The structure is 90 ft (27.4 m) long with a longest span of 88 ft (26.9 m) and a deck 46 ft wide.

Who owns SR 18 over Bachelor Run?

It is owned by the State Highway Agency.