US Bridges

CR 550 N over South Fork Deer Creek

PoorPosted for load

Howard County, Indiana · 0.1 MI W CR 50 E · Structure no. 3400061

Built
1960
65 years old, rebuilt 1991
Condition
Poor
inspected November 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
53 ft
1 main span
Daily traffic
475
2024 count
Owner
County
County Highway Agency

About this bridge

CR 550 N over South Fork Deer Creek is a prestressed concrete box beam or girders - multiple carrying CR 550 N over South Fork Deer Creek in Howard County, Indiana. It was built in 1960 and reconstructed in 1991, so it is 65 years old, older than the Indiana average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 475 vehicles a day, roughly 5% of them trucks, projected to reach 778 by 2042. The structure is 53 ft (16.2 m) long and 24 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesCR 550 N
CrossesSouth Fork Deer Creek
Location0.1 MI W CR 50 E
RouteCounty Highway 64
StateIndiana
Coordinates40.55997, -86.11976
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating24.8 US tons
Inventory rating13.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length53 ft (16.2 m)
Longest span48 ft (14.7 m)
Deck width24 ft (7.4 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic475 (2024)
Projected traffic778 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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$576,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 550 N over South Fork Deer Creek built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1991.

What condition is CR 550 N over South Fork Deer Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2024.

How much traffic does CR 550 N over South Fork Deer Creek carry?

About 475 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is CR 550 N over South Fork Deer Creek?

The structure is 53 ft (16.2 m) long with a longest span of 48 ft (14.7 m) and a deck 24 ft wide.

Who owns CR 550 N over South Fork Deer Creek?

It is owned by the County Highway Agency.