US Bridges

Allison Ave over Dry Run

Fair

Marion County, Indiana · 00.70 N of Crawfordsville · Structure no. 4900195

Built
1960
65 years old
Condition
Fair
inspected August 2024
Type
Slab
Concrete
Length
24 ft
1 main span
Daily traffic
1,326
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

Allison Ave over Dry Run is a concrete slab carrying Allison Ave over Dry Run in Marion County, Indiana. It was built in 1960, 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 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 1,326 vehicles a day, roughly 5% of them trucks, projected to reach 1,970 by 2039. The structure is 24 ft (7.2 m) long and 36 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesAllison Ave
CrossesDry Run
Location00.70 N of Crawfordsville
RouteCity Street 0
CountyMarion County
StateIndiana
Coordinates39.79968, -86.2466
Functional classUrban 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.9 US tons
Inventory rating35.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length24 ft (7.2 m)
Longest span20 ft (6 m)
Deck width36 ft (11 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,326 (2019)
Projected traffic1,970 by 2039
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Allison Ave over Dry Run built?

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

What condition is Allison Ave over Dry Run 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 August 2024.

How much traffic does Allison Ave over Dry Run carry?

About 1,326 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is Allison Ave over Dry Run?

The structure is 24 ft (7.2 m) long with a longest span of 20 ft (6 m) and a deck 36 ft wide.

Who owns Allison Ave over Dry Run?

It is owned by the City or Municipal Highway Agency.