NW 170 Ave over Spring Creek
PoorPosted for loadHarper County, Kansas · 2.3N 1.5W of Chrisfield · Structure no. 000390709006847
- Built
- 1970
- 55 years old
- Condition
- Poor
- inspected February 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 39 ft
- 2 main spans
- Daily traffic
- 10
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
NW 170 Ave over Spring Creek is a steel continuous stringer/multi-beam or girder carrying NW 170 Ave over Spring Creek in Harper County, Kansas. It was built in 1970, so it is 55 years old, older than the Kansas average of 52.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.
It carries about 10 vehicles a day, roughly 1% of them trucks, projected to reach 10 by 2043. The structure is 39 ft (11.9 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was NW 170 Ave over Spring Creek built?
It was built in 1970, making it 55 years old in 2025.
What condition is NW 170 Ave over Spring Creek in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in February 2023.
How much traffic does NW 170 Ave over Spring Creek carry?
About 10 vehicles per day (2021 count), of which roughly 1% are trucks.
How long is NW 170 Ave over Spring Creek?
The structure is 39 ft (11.9 m) long with a longest span of 18 ft (5.6 m) and a deck 24 ft wide.
Who owns NW 170 Ave over Spring Creek?
It is owned by the County Highway Agency.