US Bridges

Cyntheanne RD over Dyers Creek

Poor

Hamilton County, Indiana · 00.41 S of Strawtown Ave · Structure no. 2900117

Built
1974
51 years old
Condition
Poor
inspected September 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
33 ft
1 main span
Daily traffic
140
2020 count
Owner
County
County Highway Agency

About this bridge

Cyntheanne RD over Dyers Creek is a prestressed concrete box beam or girders - multiple carrying Cyntheanne RD over Dyers Creek in Hamilton County, Indiana. It was built in 1974, so it is 51 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.

It carries about 140 vehicles a day, roughly 3% of them trucks, projected to reach 230 by 2040. The structure is 33 ft (10 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCyntheanne RD
CrossesDyers Creek
Location00.41 S of Strawtown Ave
RouteCounty Highway 0
StateIndiana
Coordinates40.12848, -85.88268
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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.7 US tons
Inventory rating31.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length33 ft (10 m)
Longest span32 ft (9.7 m)
Deck width28 ft (8.6 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic140 (2020)
Projected traffic230 by 2040
Trucks3%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.4 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Cyntheanne RD over Dyers Creek built?

It was built in 1974, making it 51 years old in 2025.

What condition is Cyntheanne RD over Dyers 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 September 2024.

How much traffic does Cyntheanne RD over Dyers Creek carry?

About 140 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is Cyntheanne RD over Dyers Creek?

The structure is 33 ft (10 m) long with a longest span of 32 ft (9.7 m) and a deck 28 ft wide.

Who owns Cyntheanne RD over Dyers Creek?

It is owned by the County Highway Agency.