US Bridges

SR 18 EB over Tippey Ditch

Fair

Grant County, Indiana · 00.20 E I-69 · Structure no. 004859

Built
1964
61 years old, rebuilt 1993
Condition
Fair
inspected August 2023
Type
Slab
Concrete Continuous
Length
79 ft
3 main spans
Daily traffic
2,547
2018 count
Owner
State
State Highway Agency

About this bridge

SR 18 EB over Tippey Ditch is a concrete continuous slab carrying SR 18 EB over Tippey Ditch in Grant County, Indiana. It was built in 1964 and reconstructed in 1993, so it is 61 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 2,547 vehicles a day, roughly 14% of them trucks, projected to reach 4,027 by 2030. The structure is 79 ft (24 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesSR 18 EB
CrossesTippey Ditch
Location00.20 E I-69
RouteState Highway 18
CountyGrant County
StateIndiana
Coordinates40.55341, -85.54688
Functional classRural Minor Arterial

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 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.5 US tons
Inventory rating32.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length79 ft (24 m)
Longest span29 ft (8.8 m)
Deck width42 ft (12.8 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,547 (2018)
Projected traffic4,027 by 2030
Trucks14%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SR 18 EB over Tippey Ditch built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 1993.

What condition is SR 18 EB over Tippey Ditch 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 2023.

How much traffic does SR 18 EB over Tippey Ditch carry?

About 2,547 vehicles per day (2018 count), of which roughly 14% are trucks.

How long is SR 18 EB over Tippey Ditch?

The structure is 79 ft (24 m) long with a longest span of 29 ft (8.8 m) and a deck 42 ft wide.

Who owns SR 18 EB over Tippey Ditch?

It is owned by the State Highway Agency.