US Bridges

CR 100W over Seamons Ditch

Fair

Benton County, Indiana · 00.10 N of CR 475 S · Structure no. 0400067

Built
1988
37 years old
Condition
Fair
inspected May 2023
Type
Culvert
Aluminum, Wrought Iron, or Cast Iron
Length
26 ft
1 main span
Daily traffic
55
2013 count
Owner
County
County Highway Agency

About this bridge

CR 100W over Seamons Ditch is a aluminum, wrought iron, or cast iron culvert carrying CR 100W over Seamons Ditch in Benton County, Indiana. It was built in 1988, so it is 37 years old, younger 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 6 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 55 vehicles a day, roughly 8% of them trucks, projected to reach 69 by 2033. The structure is 26 ft (7.8 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCR 100W
CrossesSeamons Ditch
Location00.10 N of CR 475 S
RouteCounty Highway 100
CountyBenton County
StateIndiana
Coordinates40.53807, -87.34197
Functional classRural 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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.3 US tons
Inventory rating35.9 US tons

Structure

Structure typeCulvert
MaterialAluminum, Wrought Iron, or Cast Iron
DeckNot applicable
Main spans1
Design loadHS 20
Structure length26 ft (7.8 m)
Longest span26 ft (7.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic55 (2013)
Projected traffic69 by 2033
Trucks8%
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 100W over Seamons Ditch built?

It was built in 1988, making it 37 years old in 2025.

What condition is CR 100W over Seamons Ditch 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 May 2023.

How much traffic does CR 100W over Seamons Ditch carry?

About 55 vehicles per day (2013 count), of which roughly 8% are trucks.

How long is CR 100W over Seamons Ditch?

The structure is 26 ft (7.8 m) long with a longest span of 26 ft (7.8 m).

Who owns CR 100W over Seamons Ditch?

It is owned by the County Highway Agency.