US Bridges

RD SB Antioch over US 69 HWY

Fair

Johnson County, Kansas · 2.46 MI S I435 · Structure no. 999906900461221

Built
1973
52 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
280 ft
4 main spans
Daily traffic
8,095
2023 count
Owner
State
State Highway Agency

About this bridge

RD SB Antioch over US 69 HWY is a steel continuous stringer/multi-beam or girder carrying RD SB Antioch over US 69 HWY in Johnson County, Kansas. It was built in 1973, so it is 52 years old, younger than the Kansas average of 52.8 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 8,095 vehicles a day, roughly 7% of them trucks, projected to reach 9,877 by 2044. The structure is 280 ft (85.3 m) long and 45 ft wide.

Location

Open in Google Maps
CarriesRD SB Antioch
CrossesUS 69 HWY
Location2.46 MI S I435
RouteCity Street 2901
CountyJohnson County
StateKansas
Coordinates38.90528, -94.68639
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating49.2 US tons
Inventory rating29 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length280 ft (85.3 m)
Longest span84 ft (25.6 m)
Deck width45 ft (13.8 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,095 (2023)
Projected traffic9,877 by 2044
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 RD SB Antioch over US 69 HWY built?

It was built in 1973, making it 52 years old in 2025.

What condition is RD SB Antioch over US 69 HWY 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 July 2024.

How much traffic does RD SB Antioch over US 69 HWY carry?

About 8,095 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is RD SB Antioch over US 69 HWY?

The structure is 280 ft (85.3 m) long with a longest span of 84 ft (25.6 m) and a deck 45 ft wide.

Who owns RD SB Antioch over US 69 HWY?

It is owned by the State Highway Agency.