US Bridges

CR 550S over Mishler Ditch

Good

Whitley County, Indiana · 00.20 W CR 950 W · Structure no. 9200117

Built
2011
14 years old
Condition
Good
inspected March 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
60 ft
1 main span
Daily traffic
125
2014 count
Owner
County
County Highway Agency

About this bridge

CR 550S over Mishler Ditch is a prestressed concrete box beam or girders - multiple carrying CR 550S over Mishler Ditch in Whitley County, Indiana. It was built in 2011, so it is 14 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 125 vehicles a day, roughly 5% of them trucks, projected to reach 200 by 2038. The structure is 60 ft (18.2 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCR 550S
CrossesMishler Ditch
Location00.20 W CR 950 W
RouteCounty Highway 80
StateIndiana
Coordinates41.08273, -85.67761
Functional classRural Local

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 inspectionMarch 2024
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating72.8 US tons
Inventory rating43.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length60 ft (18.2 m)
Longest span56 ft (17.2 m)
Deck width32 ft (9.7 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic125 (2014)
Projected traffic200 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 550S over Mishler Ditch built?

It was built in 2011, making it 14 years old in 2025.

What condition is CR 550S over Mishler 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 March 2024.

How much traffic does CR 550S over Mishler Ditch carry?

About 125 vehicles per day (2014 count), of which roughly 5% are trucks.

How long is CR 550S over Mishler Ditch?

The structure is 60 ft (18.2 m) long with a longest span of 56 ft (17.2 m) and a deck 32 ft wide.

Who owns CR 550S over Mishler Ditch?

It is owned by the County Highway Agency.