SH 170 Ml over Community Ditch
FairBoulder County, Colorado · E Ent Eldorado State Park · Structure no. E-15-AA
- Built
- 1999
- 26 years old
- Condition
- Fair
- inspected August 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 43 ft
- 1 main span
- Daily traffic
- 1,300
- 2021 count
- Owner
- State
- State Park, Forest, or Reservation Agency
About this bridge
SH 170 Ml over Community Ditch is a steel stringer/multi-beam or girder carrying SH 170 Ml over Community Ditch in Boulder County, Colorado. It was built in 1999, so it is 26 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 1,300 vehicles a day, roughly 2% of them trucks, projected to reach 1,560 by 2041. The structure is 43 ft (13.1 m) long and 25 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SH 170 Ml over Community Ditch built?
It was built in 1999, making it 26 years old in 2025.
What condition is SH 170 Ml over Community Ditch 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 August 2023.
How much traffic does SH 170 Ml over Community Ditch carry?
About 1,300 vehicles per day (2021 count), of which roughly 2% are trucks.
How long is SH 170 Ml over Community Ditch?
The structure is 43 ft (13.1 m) long with a longest span of 40 ft (12.2 m) and a deck 25 ft wide.
Who owns SH 170 Ml over Community Ditch?
It is owned by the State Park, Forest, or Reservation Agency.