US 77 over I 29 & Ia 12 NB
GoodWoodbury County, Iowa · At Jct. US I-29 · Structure no. 000000000700200
- Built
- 2012
- 13 years old
- Condition
- Good
- inspected December 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 155 ft
- 1 main span
- Daily traffic
- 26,900
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 77 over I 29 & Ia 12 NB is a steel continuous stringer/multi-beam or girder carrying US 77 over I 29 & Ia 12 NB in Woodbury County, Iowa. It was built in 2012, so it is 13 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 26,900 vehicles a day, roughly 2% of them trucks, projected to reach 26,900 by 2044. The structure is 155 ft (47.2 m) long and 118 ft wide.
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 | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 77 over I 29 & Ia 12 NB built?
It was built in 2012, making it 13 years old in 2025.
What condition is US 77 over I 29 & Ia 12 NB 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 December 2024.
How much traffic does US 77 over I 29 & Ia 12 NB carry?
About 26,900 vehicles per day (2023 count), of which roughly 2% are trucks.
How long is US 77 over I 29 & Ia 12 NB?
The structure is 155 ft (47.2 m) long with a longest span of 152 ft (46.3 m) and a deck 118 ft wide.
Who owns US 77 over I 29 & Ia 12 NB?
It is owned by the State Highway Agency.