Ia 13 over Branch Maquoketa River
FairDelaware County, Iowa · 0.1 Mi. N of N JCT SR D47 · Structure no. 000000000023201
- Built
- 1975
- 50 years old
- Condition
- Fair
- inspected March 2023
- Type
- Culvert
- Concrete Continuous
- Length
- 26 ft
- 2 main spans
- Daily traffic
- 4,840
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Ia 13 over Branch Maquoketa River is a concrete continuous culvert carrying Ia 13 over Branch Maquoketa River in Delaware County, Iowa. It was built in 1975, so it is 50 years old, older 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 4,840 vehicles a day, roughly 13% of them trucks, projected to reach 4,840 by 2042. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 9.9 mi (16 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 |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ia 13 over Branch Maquoketa River built?
It was built in 1975, making it 50 years old in 2025.
What condition is Ia 13 over Branch Maquoketa River 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 March 2023.
How much traffic does Ia 13 over Branch Maquoketa River carry?
About 4,840 vehicles per day (2022 count), of which roughly 13% are trucks.
How long is Ia 13 over Branch Maquoketa River?
The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m).
Who owns Ia 13 over Branch Maquoketa River?
It is owned by the State Highway Agency.