US Bridges

SR 55 over Knight Ditch

Good

Newton County, Indiana · 06.28 N SR 14 · Structure no. 019801

Built
2013
12 years old
Condition
Good
inspected September 2023
Type
Slab
Concrete Continuous
Length
84 ft
3 main spans
Daily traffic
710
2006 count
Owner
State
State Highway Agency

About this bridge

SR 55 over Knight Ditch is a concrete continuous slab carrying SR 55 over Knight Ditch in Newton County, Indiana. It was built in 2013, so it is 12 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 710 vehicles a day, roughly 14% of them trucks, projected to reach 890 by 2032. The structure is 84 ft (25.6 m) long and 38 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSR 55
CrossesKnight Ditch
Location06.28 N SR 14
RouteState Highway 55
CountyNewton County
StateIndiana
Coordinates41.10443, -87.33377
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.4 US tons
Inventory rating47.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length84 ft (25.6 m)
Longest span32 ft (9.7 m)
Deck width38 ft (11.6 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic710 (2006)
Projected traffic890 by 2032
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 55 over Knight Ditch built?

It was built in 2013, making it 12 years old in 2025.

What condition is SR 55 over Knight Ditch 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 2023.

How much traffic does SR 55 over Knight Ditch carry?

About 710 vehicles per day (2006 count), of which roughly 14% are trucks.

How long is SR 55 over Knight Ditch?

The structure is 84 ft (25.6 m) long with a longest span of 32 ft (9.7 m) and a deck 38 ft wide.

Who owns SR 55 over Knight Ditch?

It is owned by the State Highway Agency.