I-35 HWY SB over Neosho River
GoodLyon County, Kansas · 3.69 MI East of K-99 · Structure no. 999903500561181
- Built
- 1976
- 49 years old
- Condition
- Good
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 464 ft
- 5 main spans
- Daily traffic
- 8,550
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I-35 HWY SB over Neosho River is a steel continuous stringer/multi-beam or girder carrying I-35 HWY SB over Neosho River in Lyon County, Kansas. It was built in 1976, so it is 49 years old, younger than the Kansas average of 52.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 8,550 vehicles a day, roughly 22% of them trucks, projected to reach 9,637 by 2044. The structure is 464 ft (141.3 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-35 HWY SB over Neosho River built?
It was built in 1976, making it 49 years old in 2025.
What condition is I-35 HWY SB over Neosho River 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 June 2024.
How much traffic does I-35 HWY SB over Neosho River carry?
About 8,550 vehicles per day (2023 count), of which roughly 22% are trucks.
How long is I-35 HWY SB over Neosho River?
The structure is 464 ft (141.3 m) long with a longest span of 100 ft (30.5 m) and a deck 42 ft wide.
Who owns I-35 HWY SB over Neosho River?
It is owned by the State Highway Agency.