US Bridges

CR 550W over Mill Creek

Good

Hendricks County, Indiana · 00.70 S of CR 600 S · Structure no. 3200103

Built
1980
45 years old
Condition
Good
inspected May 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
87 ft
1 main span
Daily traffic
325
2018 count
Owner
County
County Highway Agency

About this bridge

CR 550W over Mill Creek is a prestressed concrete box beam or girders - multiple carrying CR 550W over Mill Creek in Hendricks County, Indiana. It was built in 1980, so it is 45 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 325 vehicles a day, roughly 11% of them trucks, projected to reach 550 by 2038. The structure is 87 ft (26.5 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCR 550W
CrossesMill Creek
Location00.70 S of CR 600 S
RouteCounty Highway 7
StateIndiana
Coordinates39.66531, -86.62287
Functional classRural Minor Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating89 US tons
Inventory rating53.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length87 ft (26.5 m)
Longest span86 ft (26.1 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic325 (2018)
Projected traffic550 by 2038
Trucks11%
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 550W over Mill Creek built?

It was built in 1980, making it 45 years old in 2025.

What condition is CR 550W over Mill Creek 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 May 2024.

How much traffic does CR 550W over Mill Creek carry?

About 325 vehicles per day (2018 count), of which roughly 11% are trucks.

How long is CR 550W over Mill Creek?

The structure is 87 ft (26.5 m) long with a longest span of 86 ft (26.1 m) and a deck 24 ft wide.

Who owns CR 550W over Mill Creek?

It is owned by the County Highway Agency.