Northbrook DR over Dry Creek
PoorLinn County, Iowa · 000000000 · Structure no. 000000000500990
- Built
- 1972
- 53 years old
- Condition
- Poor
- inspected April 2023
- Type
- Slab
- Concrete Continuous
- Length
- 100 ft
- 3 main spans
- Daily traffic
- 1,755
- 2021 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Northbrook DR over Dry Creek is a concrete continuous slab carrying Northbrook DR over Dry Creek in Linn County, Iowa. It was built in 1972, so it is 53 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.
It carries about 1,755 vehicles a day, projected to reach 1,755 by 2043. The structure is 100 ft (30.5 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| 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 Northbrook DR over Dry Creek built?
It was built in 1972, making it 53 years old in 2025.
What condition is Northbrook DR over Dry 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 Northbrook DR over Dry Creek carry?
About 1,755 vehicles per day (2021 count).
How long is Northbrook DR over Dry Creek?
The structure is 100 ft (30.5 m) long with a longest span of 39 ft (11.9 m) and a deck 32 ft wide.
Who owns Northbrook DR over Dry Creek?
It is owned by the City or Municipal Highway Agency.