US Bridges

CR 550N over Righthand Fork-Salt CR

Fair

Decatur County, Indiana · 00.10 N of CR 880 E · Structure no. 1600192

Built
1984
41 years old
Condition
Fair
inspected May 2023
Type
Culvert
Steel
Length
28 ft
1 main span
Daily traffic
280
2017 count
Owner
County
County Highway Agency

About this bridge

CR 550N over Righthand Fork-Salt CR is a steel culvert carrying CR 550N over Righthand Fork-Salt CR in Decatur County, Indiana. It was built in 1984, so it is 41 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 280 vehicles a day, roughly 3% of them trucks, projected to reach 440 by 2037. The structure is 28 ft (8.5 m) long and 17 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

Open in Google Maps
CarriesCR 550N
CrossesRighthand Fork-Salt CR
Location00.10 N of CR 880 E
RouteCounty Highway 81
CountyDecatur County
StateIndiana
Coordinates39.42222, -85.32067
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating36.4 US tons
Inventory rating27.9 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadUnknown
Structure length28 ft (8.5 m)
Longest span24 ft (7.3 m)
Deck width17 ft (5.1 m)
Roadway width17 ft (5.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic280 (2017)
Projected traffic440 by 2037
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 550N over Righthand Fork-Salt CR built?

It was built in 1984, making it 41 years old in 2025.

What condition is CR 550N over Righthand Fork-Salt CR 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 550N over Righthand Fork-Salt CR carry?

About 280 vehicles per day (2017 count), of which roughly 3% are trucks.

How long is CR 550N over Righthand Fork-Salt CR?

The structure is 28 ft (8.5 m) long with a longest span of 24 ft (7.3 m) and a deck 17 ft wide.

Who owns CR 550N over Righthand Fork-Salt CR?

It is owned by the County Highway Agency.