US Bridges

SR 550 over Smalls Creek

Good

Knox County, Indiana · 01.57 W SR 67 · Structure no. 032941

Built
2023
2 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
71 ft
1 main span
Daily traffic
1,600
2023 count
Owner
State
State Highway Agency

About this bridge

SR 550 over Smalls Creek is a steel stringer/multi-beam or girder carrying SR 550 over Smalls Creek in Knox County, Indiana. It was built in 2023, so it is 2 years old, younger than the Indiana average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,600 vehicles a day, roughly 32% of them trucks, projected to reach 1,663 by 2043. The structure is 71 ft (21.7 m) long and 35 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

Open in Google Maps
CarriesSR 550
CrossesSmalls Creek
Location01.57 W SR 67
RouteState Highway 550
CountyKnox County
StateIndiana
Coordinates38.77164, -87.43005
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.5 US tons
Inventory rating44.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length71 ft (21.7 m)
Longest span70 ft (21.3 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,600 (2023)
Projected traffic1,663 by 2043
Trucks32%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 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 550 over Smalls Creek built?

It was built in 2023, making it 2 years old in 2025.

What condition is SR 550 over Smalls Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2024.

How much traffic does SR 550 over Smalls Creek carry?

About 1,600 vehicles per day (2023 count), of which roughly 32% are trucks.

How long is SR 550 over Smalls Creek?

The structure is 71 ft (21.7 m) long with a longest span of 70 ft (21.3 m) and a deck 35 ft wide.

Who owns SR 550 over Smalls Creek?

It is owned by the State Highway Agency.