WB US 20 over Hess RD
GoodBlack Hawk County, Iowa · 0.3 Mi.W of W JCT 380/218 · Structure no. 000000000605315
- Built
- 1983
- 42 years old
- Condition
- Good
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 191 ft
- 3 main spans
- Daily traffic
- 10,800
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
WB US 20 over Hess RD is a prestressed concrete stringer/multi-beam or girder carrying WB US 20 over Hess RD in Black Hawk County, Iowa. It was built in 1983, so it is 42 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 10,800 vehicles a day, roughly 20% of them trucks, projected to reach 10,800 by 2043. The structure is 191 ft (58.2 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was WB US 20 over Hess RD built?
It was built in 1983, making it 42 years old in 2025.
What condition is WB US 20 over Hess RD 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 March 2023.
How much traffic does WB US 20 over Hess RD carry?
About 10,800 vehicles per day (2022 count), of which roughly 20% are trucks.
How long is WB US 20 over Hess RD?
The structure is 191 ft (58.2 m) long with a longest span of 92 ft (28 m) and a deck 43 ft wide.
Who owns WB US 20 over Hess RD?
It is owned by the State Highway Agency.