US Bridges

206th Stcr 300 N over I-65 Sb/Nb

Fair

Boone County, Indiana · 00.73 N US 52 · Structure no. 037270

Built
1970
55 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
224 ft
2 main spans
Daily traffic
1,852
2015 count
Owner
State
State Highway Agency

About this bridge

206th Stcr 300 N over I-65 Sb/Nb is a steel continuous stringer/multi-beam or girder carrying 206th Stcr 300 N over I-65 Sb/Nb in Boone County, Indiana. It was built in 1970, so it is 55 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 1,852 vehicles a day, roughly 5% of them trucks, projected to reach 4,652 by 2030. The structure is 224 ft (68.2 m) long and 35 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

Open in Google Maps
Carries206th Stcr 300 N
CrossesI-65 Sb/Nb
Location00.73 N US 52
RouteCity Street 0
CountyBoone County
StateIndiana
Coordinates40.08302, -86.50242
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.8 US tons
Inventory rating40 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length224 ft (68.2 m)
Longest span110 ft (33.5 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,852 (2015)
Projected traffic4,652 by 2030
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$850,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was 206th Stcr 300 N over I-65 Sb/Nb built?

It was built in 1970, making it 55 years old in 2025.

What condition is 206th Stcr 300 N over I-65 Sb/Nb 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 June 2023.

How much traffic does 206th Stcr 300 N over I-65 Sb/Nb carry?

About 1,852 vehicles per day (2015 count), of which roughly 5% are trucks.

How long is 206th Stcr 300 N over I-65 Sb/Nb?

The structure is 224 ft (68.2 m) long with a longest span of 110 ft (33.5 m) and a deck 35 ft wide.

Who owns 206th Stcr 300 N over I-65 Sb/Nb?

It is owned by the State Highway Agency.