US Bridges

SR 28 over Tobin Ditch

Fair

Tipton County, Indiana · 00.88 E SR 19 · Structure no. 007710

Built
1989
36 years old
Condition
Fair
inspected February 2023
Type
Slab
Concrete Continuous
Length
76 ft
3 main spans
Daily traffic
5,321
2022 count
Owner
State
State Highway Agency

About this bridge

SR 28 over Tobin Ditch is a concrete continuous slab carrying SR 28 over Tobin Ditch in Tipton County, Indiana. It was built in 1989, so it is 36 years old, younger 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 5,321 vehicles a day, roughly 14% of them trucks, projected to reach 6,917 by 2042. The structure is 76 ft (23.1 m) long and 47 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesSR 28
CrossesTobin Ditch
Location00.88 E SR 19
RouteState Highway 28
CountyTipton County
StateIndiana
Coordinates40.28361, -86.01496
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.7 US tons
Inventory rating31.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length76 ft (23.1 m)
Longest span29 ft (8.8 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,321 (2022)
Projected traffic6,917 by 2042
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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 28 over Tobin Ditch built?

It was built in 1989, making it 36 years old in 2025.

What condition is SR 28 over Tobin 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 February 2023.

How much traffic does SR 28 over Tobin Ditch carry?

About 5,321 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is SR 28 over Tobin Ditch?

The structure is 76 ft (23.1 m) long with a longest span of 29 ft (8.8 m) and a deck 47 ft wide.

Who owns SR 28 over Tobin Ditch?

It is owned by the State Highway Agency.