US Bridges

SR 18 WB over Boots Creek

Fair

Grant County, Indiana · 00.64 E SR 9 · Structure no. 004840

Built
1926
99 years old, rebuilt 1983
Condition
Fair
inspected August 2023
Type
Slab
Concrete
Length
26 ft
1 main span
Daily traffic
7,943
2018 count
Owner
State
State Highway Agency

About this bridge

SR 18 WB over Boots Creek is a concrete slab carrying SR 18 WB over Boots Creek in Grant County, Indiana. It was built in 1926 and reconstructed in 1983, so it is 99 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 7,943 vehicles a day, roughly 8% of them trucks, projected to reach 8,447 by 2032. The structure is 26 ft (8 m) long and 64 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesSR 18 WB
CrossesBoots Creek
Location00.64 E SR 9
RouteState Highway 18
StateIndiana
Coordinates40.55881, -85.66364
Functional classUrban Other Principal 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 inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length26 ft (8 m)
Longest span22 ft (6.8 m)
Deck width64 ft (19.5 m)
Roadway width36 ft (10.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,943 (2018)
Projected traffic8,447 by 2032
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
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 WB over Boots Creek built?

It was built in 1926, making it 99 years old in 2025. It was reconstructed in 1983.

What condition is SR 18 WB over Boots 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 August 2023.

How much traffic does SR 18 WB over Boots Creek carry?

About 7,943 vehicles per day (2018 count), of which roughly 8% are trucks.

How long is SR 18 WB over Boots Creek?

The structure is 26 ft (8 m) long with a longest span of 22 ft (6.8 m) and a deck 64 ft wide.

Who owns SR 18 WB over Boots Creek?

It is owned by the State Highway Agency.