SR G 55 over US 63 & Ia 163
GoodMahaska County, Iowa · At W Jct. of Iowa 163 · Structure no. 000000000606720
- Built
- 1996
- 29 years old
- Condition
- Good
- inspected April 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 323 ft
- 2 main spans
- Daily traffic
- 530
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
SR G 55 over US 63 & Ia 163 is a steel continuous stringer/multi-beam or girder carrying SR G 55 over US 63 & Ia 163 in Mahaska County, Iowa. It was built in 1996, so it is 29 years old, younger than the Iowa average of 45.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 530 vehicles a day, roughly 21% of them trucks, projected to reach 530 by 2042. The structure is 323 ft (98.5 m) long and 39 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR G 55 over US 63 & Ia 163 built?
It was built in 1996, making it 29 years old in 2025.
What condition is SR G 55 over US 63 & Ia 163 in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.
How much traffic does SR G 55 over US 63 & Ia 163 carry?
About 530 vehicles per day (2022 count), of which roughly 21% are trucks.
How long is SR G 55 over US 63 & Ia 163?
The structure is 323 ft (98.5 m) long with a longest span of 165 ft (50.3 m) and a deck 39 ft wide.
Who owns SR G 55 over US 63 & Ia 163?
It is owned by the State Highway Agency.