US Bridges

CR 550E over Blue River

Fair

Whitley County, Indiana · 00.45 S CR 600 N · Structure no. 9200054

Built
1958
67 years old, rebuilt 2006
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
71 ft
1 main span
Daily traffic
200
2014 count
Owner
County
County Highway Agency

About this bridge

CR 550E over Blue River is a steel stringer/multi-beam or girder carrying CR 550E over Blue River in Whitley County, Indiana. It was built in 1958 and reconstructed in 2006, so it is 67 years old, older 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 200 vehicles a day, roughly 6% of them trucks, projected to reach 375 by 2038. The structure is 71 ft (21.6 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCR 550E
CrossesBlue River
Location00.45 S CR 600 N
RouteCounty Highway 75
StateIndiana
Coordinates41.24504, -85.38583
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 evaluation6: Equal to 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 rating96.8 US tons
Inventory rating58 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length71 ft (21.6 m)
Longest span66 ft (20.1 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2014)
Projected traffic375 by 2038
Trucks6%
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 550E over Blue River built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 2006.

What condition is CR 550E over Blue River 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 March 2024.

How much traffic does CR 550E over Blue River carry?

About 200 vehicles per day (2014 count), of which roughly 6% are trucks.

How long is CR 550E over Blue River?

The structure is 71 ft (21.6 m) long with a longest span of 66 ft (20.1 m) and a deck 31 ft wide.

Who owns CR 550E over Blue River?

It is owned by the County Highway Agency.