US Bridges

CR 100 East over Grassy Creek

Fair

Cass County, Indiana · 00.15 S of CR 1000 N · Structure no. 0900144

Built
1985
40 years old
Condition
Fair
inspected June 2023
Type
Culvert
Steel
Length
22 ft
1 main span
Daily traffic
130
2023 count
Owner
County
County Highway Agency

About this bridge

CR 100 East over Grassy Creek is a steel culvert carrying CR 100 East over Grassy Creek in Cass County, Indiana. It was built in 1985, so it is 40 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 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 130 vehicles a day, roughly 3% of them trucks, projected to reach 170 by 2043. The structure is 22 ft (6.7 m) long and 72 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCR 100 East
CrossesGrassy Creek
Location00.15 S of CR 1000 N
RouteCounty Highway 89
CountyCass County
StateIndiana
Coordinates40.90729, -86.35581
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 protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.7 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span21 ft (6.4 m)
Deck width72 ft (21.9 m)
Roadway width29 ft (8.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic130 (2023)
Projected traffic170 by 2043
Trucks3%
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 100 East over Grassy Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is CR 100 East over Grassy 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 June 2023.

How much traffic does CR 100 East over Grassy Creek carry?

About 130 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is CR 100 East over Grassy Creek?

The structure is 22 ft (6.7 m) long with a longest span of 21 ft (6.4 m) and a deck 72 ft wide.

Who owns CR 100 East over Grassy Creek?

It is owned by the County Highway Agency.