US Bridges

Oak Road over Fishback Creek

Fair

Boone County, Indiana · 01.83 W I-65 · Structure no. 0600211

Built
1960
65 years old, rebuilt 1992
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
106 ft
3 main spans
Daily traffic
14,819
2017 count
Owner
County
County Highway Agency

About this bridge

Oak Road over Fishback Creek is a prestressed concrete continuous box beam or girders - single or spread carrying Oak Road over Fishback Creek in Boone County, Indiana. It was built in 1960 and reconstructed in 1992, 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 fair condition with a lowest component rating of 6 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 14,819 vehicles a day, roughly 10% of them trucks, projected to reach 23,040 by 2037. The structure is 106 ft (32.3 m) long and 36 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesOak Road
CrossesFishback Creek
Location01.83 W I-65
RouteCity Street 0
CountyBoone County
StateIndiana
Coordinates39.94963, -86.3198
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.3 US tons
Inventory rating35.1 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3 (+1 approach)
Design loadUnknown
Structure length106 ft (32.3 m)
Longest span34 ft (10.5 m)
Deck width36 ft (11.1 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,819 (2017)
Projected traffic23,040 by 2037
Trucks10%
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 Oak Road over Fishback Creek built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1992.

What condition is Oak Road over Fishback 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 September 2023.

How much traffic does Oak Road over Fishback Creek carry?

About 14,819 vehicles per day (2017 count), of which roughly 10% are trucks.

How long is Oak Road over Fishback Creek?

The structure is 106 ft (32.3 m) long with a longest span of 34 ft (10.5 m) and a deck 36 ft wide.

Who owns Oak Road over Fishback Creek?

It is owned by the County Highway Agency.