NE 86th Ave over Four Mile Creek
PoorClosed to trafficPolk County, Iowa · 080233005 · Structure no. 000000000281880
- Built
- 1941
- 84 years old
- Condition
- Poor
- inspected April 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 152 ft
- 3 main spans
- Daily traffic
- 89
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
NE 86th Ave over Four Mile Creek is a steel continuous stringer/multi-beam or girder carrying NE 86th Ave over Four Mile Creek in Polk County, Iowa. It was built in 1941, so it is 84 years old, older than the Iowa average of 45.5 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: closed to all traffic.
It carries about 89 vehicles a day, projected to reach 89 by 2043. The structure is 152 ft (46.3 m) long and 21 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| 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 NE 86th Ave over Four Mile Creek built?
It was built in 1941, making it 84 years old in 2025.
What condition is NE 86th Ave over Four Mile 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 April 2023.
How much traffic does NE 86th Ave over Four Mile Creek carry?
About 89 vehicles per day (2022 count).
How long is NE 86th Ave over Four Mile Creek?
The structure is 152 ft (46.3 m) long with a longest span of 59 ft (18 m) and a deck 21 ft wide.
Who owns NE 86th Ave over Four Mile Creek?
It is owned by the County Highway Agency.