US Bridges

91st ST over Williams Creek

Fair

Marion County, Indiana · 00.45 W of Spring Mill RD · Structure no. 4900017

Built
1974
51 years old
Condition
Fair
inspected August 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
123 ft
3 main spans
Daily traffic
12,965
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

91st ST over Williams Creek is a prestressed concrete continuous box beam or girders - single or spread carrying 91st ST over Williams Creek in Marion County, Indiana. It was built in 1974, so it is 51 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 12,965 vehicles a day, roughly 5% of them trucks, projected to reach 19,266 by 2039. The structure is 123 ft (37.5 m) long and 32 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Carries91st ST
CrossesWilliams Creek
Location00.45 W of Spring Mill RD
RouteCity Street 0
StateIndiana
Coordinates39.91956, -86.17341
Functional classUrban 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating66.9 US tons
Inventory rating38.5 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length123 ft (37.5 m)
Longest span45 ft (13.8 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,965 (2019)
Projected traffic19,266 by 2039
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 91st ST over Williams Creek built?

It was built in 1974, making it 51 years old in 2025.

What condition is 91st ST over Williams 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 2024.

How much traffic does 91st ST over Williams Creek carry?

About 12,965 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is 91st ST over Williams Creek?

The structure is 123 ft (37.5 m) long with a longest span of 45 ft (13.8 m) and a deck 32 ft wide.

Who owns 91st ST over Williams Creek?

It is owned by the City or Municipal Highway Agency.