US Bridges

Cyntheanne RD over Thorpe Creek

Good

Hamilton County, Indiana · 00.63 N of 126th ST · Structure no. 2900157

Built
1998
27 years old
Condition
Good
inspected September 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
50 ft
1 main span
Daily traffic
2,820
2024 count
Owner
County
County Highway Agency

About this bridge

Cyntheanne RD over Thorpe Creek is a prestressed concrete box beam or girders - single or spread carrying Cyntheanne RD over Thorpe Creek in Hamilton County, Indiana. It was built in 1998, so it is 27 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 2,820 vehicles a day, roughly 4% of them trucks, projected to reach 5,080 by 2044. The structure is 50 ft (15.2 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCyntheanne RD
CrossesThorpe Creek
Location00.63 N of 126th ST
RouteCity Street 0
StateIndiana
Coordinates39.98206, -85.88113
Functional classUrban 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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 alignment8: Equal to present desirable criteria
Operating rating38.6 US tons
Inventory rating29.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span45 ft (13.7 m)
Deck width32 ft (9.9 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,820 (2024)
Projected traffic5,080 by 2044
Trucks4%
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 Cyntheanne RD over Thorpe Creek built?

It was built in 1998, making it 27 years old in 2025.

What condition is Cyntheanne RD over Thorpe 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 September 2023.

How much traffic does Cyntheanne RD over Thorpe Creek carry?

About 2,820 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Cyntheanne RD over Thorpe Creek?

The structure is 50 ft (15.2 m) long with a longest span of 45 ft (13.7 m) and a deck 32 ft wide.

Who owns Cyntheanne RD over Thorpe Creek?

It is owned by the County Highway Agency.