X-28 & Middle R over Mississippi Slough
PoorPosted for loadLee County, Iowa · 000000000 · Structure no. 000000000008370
- Built
- 1957
- 68 years old
- Condition
- Poor
- inspected March 2024
- Type
- Channel Beam
- Concrete
- Length
- 31 ft
- 1 main span
- Daily traffic
- 832
- 2022 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
X-28 & Middle R over Mississippi Slough is a concrete channel beam carrying X-28 & Middle R over Mississippi Slough in Lee County, Iowa. It was built in 1957, so it is 68 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 3 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 832 vehicles a day, projected to reach 832 by 2044. The structure is 31 ft (9.4 m) long and 26 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Superstructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, 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 X-28 & Middle R over Mississippi Slough built?
It was built in 1957, making it 68 years old in 2025.
What condition is X-28 & Middle R over Mississippi Slough 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 March 2024.
How much traffic does X-28 & Middle R over Mississippi Slough carry?
About 832 vehicles per day (2022 count).
How long is X-28 & Middle R over Mississippi Slough?
The structure is 31 ft (9.4 m) long with a longest span of 30 ft (9.1 m) and a deck 26 ft wide.
Who owns X-28 & Middle R over Mississippi Slough?
It is owned by the City or Municipal Highway Agency.