Northgate #42 over Mill Creek
GoodJohnson County, Kansas · 0.6N of Santa Fe · Structure no. 521200460000042
- Built
- 1987
- 38 years old
- Condition
- Good
- inspected May 2023
- Type
- Slab
- Concrete Continuous
- Length
- 144 ft
- 3 main spans
- Daily traffic
- 8,515
- 2010 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Northgate #42 over Mill Creek is a concrete continuous slab carrying Northgate #42 over Mill Creek in Johnson County, Kansas. It was built in 1987, so it is 38 years old, younger than the Kansas average of 52.8 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 8,515 vehicles a day, roughly 5% of them trucks, projected to reach 12,240 by 2043. The structure is 144 ft (43.9 m) long and 84 ft wide. If it were closed, the detour would be 0.6 mi (1 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. |
| 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 Northgate #42 over Mill Creek built?
It was built in 1987, making it 38 years old in 2025.
What condition is Northgate #42 over Mill Creek 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 May 2023.
How much traffic does Northgate #42 over Mill Creek carry?
About 8,515 vehicles per day (2010 count), of which roughly 5% are trucks.
How long is Northgate #42 over Mill Creek?
The structure is 144 ft (43.9 m) long with a longest span of 56 ft (17 m) and a deck 84 ft wide.
Who owns Northgate #42 over Mill Creek?
It is owned by the City or Municipal Highway Agency.