US Bridges

CR 1100 E over Roberts Ditch

Good

Howard County, Indiana · 0.2 MI N CR 100 S · Structure no. 3400032

Built
1960
65 years old
Condition
Good
inspected November 2024
Type
Slab
Concrete Continuous
Length
47 ft
3 main spans
Daily traffic
512
2018 count
Owner
County
County Highway Agency

About this bridge

CR 1100 E over Roberts Ditch is a concrete continuous slab carrying CR 1100 E over Roberts Ditch in Howard County, Indiana. It was built in 1960, so it is 65 years old, older 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 512 vehicles a day, roughly 5% of them trucks, projected to reach 838 by 2038. The structure is 47 ft (14.2 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCR 1100 E
CrossesRoberts Ditch
Location0.2 MI N CR 100 S
RouteCounty Highway 61
StateIndiana
Coordinates40.46623, -85.91891
Functional classRural Minor 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 protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53 US tons
Inventory rating31.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length47 ft (14.2 m)
Longest span18 ft (5.4 m)
Deck width28 ft (8.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic512 (2018)
Projected traffic838 by 2038
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 CR 1100 E over Roberts Ditch built?

It was built in 1960, making it 65 years old in 2025.

What condition is CR 1100 E over Roberts 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 November 2024.

How much traffic does CR 1100 E over Roberts Ditch carry?

About 512 vehicles per day (2018 count), of which roughly 5% are trucks.

How long is CR 1100 E over Roberts Ditch?

The structure is 47 ft (14.2 m) long with a longest span of 18 ft (5.4 m) and a deck 28 ft wide.

Who owns CR 1100 E over Roberts Ditch?

It is owned by the County Highway Agency.