SH 59 Ml over South Platte River
FairSedgwick County, Colorado · 1.6 MI N of I-76 Sedgwick · Structure no. A-26-BA
- Built
- 1987
- 38 years old
- Condition
- Fair
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 1,056 ft
- 10 main spans
- Daily traffic
- 560
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
SH 59 Ml over South Platte River is a prestressed concrete continuous stringer/multi-beam or girder carrying SH 59 Ml over South Platte River in Sedgwick County, Colorado. It was built in 1987, so it is 38 years old, younger than the Colorado average of 42.2 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 560 vehicles a day, roughly 12% of them trucks, projected to reach 650 by 2040. The structure is 1,056 ft (321.9 m) long and 36 ft wide. If it were closed, the detour would be 14.9 mi (24 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SH 59 Ml over South Platte River built?
It was built in 1987, making it 38 years old in 2025.
What condition is SH 59 Ml over South Platte 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 June 2023.
How much traffic does SH 59 Ml over South Platte River carry?
About 560 vehicles per day (2020 count), of which roughly 12% are trucks.
How long is SH 59 Ml over South Platte River?
The structure is 1,056 ft (321.9 m) long with a longest span of 103 ft (31.5 m) and a deck 36 ft wide.
Who owns SH 59 Ml over South Platte River?
It is owned by the State Highway Agency.