Ia 21 over Sugar Creek
FairKeokuk County, Iowa · 3.0 Mi. N of Ia 149 · Structure no. 000000000210121
- Built
- 1989
- 36 years old
- Condition
- Fair
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 98 ft
- 1 main span
- Daily traffic
- 630
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Ia 21 over Sugar Creek is a prestressed concrete stringer/multi-beam or girder carrying Ia 21 over Sugar Creek in Keokuk County, Iowa. It was built in 1989, so it is 36 years old, younger than the Iowa average of 45.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 630 vehicles a day, roughly 25% of them trucks, projected to reach 630 by 2044. The structure is 98 ft (29.9 m) long and 43 ft wide. If it were closed, the detour would be 14.3 mi (23 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| 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 Ia 21 over Sugar Creek built?
It was built in 1989, making it 36 years old in 2025.
What condition is Ia 21 over Sugar Creek in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.
How much traffic does Ia 21 over Sugar Creek carry?
About 630 vehicles per day (2022 count), of which roughly 25% are trucks.
How long is Ia 21 over Sugar Creek?
The structure is 98 ft (29.9 m) long with a longest span of 95 ft (29 m) and a deck 43 ft wide.
Who owns Ia 21 over Sugar Creek?
It is owned by the State Highway Agency.