US Bridges

Konradi RD over Branch of Ziegler Creek

Fair

Dearborn County, Indiana · 00.20 S of Bonnell RD · Structure no. 1500087

Built
1940
85 years old, rebuilt 2014
Condition
Fair
inspected April 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
31 ft
1 main span
Daily traffic
100
2017 count
Owner
County
County Highway Agency

About this bridge

Konradi RD over Branch of Ziegler Creek is a prestressed concrete box beam or girders - multiple carrying Konradi RD over Branch of Ziegler Creek in Dearborn County, Indiana. It was built in 1940 and reconstructed in 2014, so it is 85 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 5 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 100 vehicles a day, roughly 10% of them trucks, projected to reach 150 by 2037. The structure is 31 ft (9.4 m) long and 20 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesKonradi RD
CrossesBranch of Ziegler Creek
Location00.20 S of Bonnell RD
RouteCounty Highway 0
CountyDearborn County
StateIndiana
Coordinates39.16798, -84.9766
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being 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 alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating87.2 US tons
Inventory rating52.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span28 ft (8.6 m)
Deck width20 ft (6 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2017)
Projected traffic150 by 2037
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Konradi RD over Branch of Ziegler Creek built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 2014.

What condition is Konradi RD over Branch of Ziegler Creek 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 April 2023.

How much traffic does Konradi RD over Branch of Ziegler Creek carry?

About 100 vehicles per day (2017 count), of which roughly 10% are trucks.

How long is Konradi RD over Branch of Ziegler Creek?

The structure is 31 ft (9.4 m) long with a longest span of 28 ft (8.6 m) and a deck 20 ft wide.

Who owns Konradi RD over Branch of Ziegler Creek?

It is owned by the County Highway Agency.