IRR 1646C over Little Washita River
FairComanche County, Oklahoma · 7N&3E of JCT SH65&17 · Structure no. 250580000000000
- Built
- 1998
- 27 years old
- Condition
- Fair
- inspected July 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 172 ft
- 3 main spans
- Daily traffic
- 100
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
IRR 1646C over Little Washita River is a prestressed concrete stringer/multi-beam or girder carrying IRR 1646C over Little Washita River in Comanche County, Oklahoma. It was built in 1998, so it is 27 years old, younger than the Oklahoma average of 47.8 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 100 vehicles a day, roughly 15% of them trucks, projected to reach 160 by 2042. The structure is 172 ft (52.4 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 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 | 8 Very Good | No problems noted. |
| 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 IRR 1646C over Little Washita River built?
It was built in 1998, making it 27 years old in 2025.
What condition is IRR 1646C over Little Washita 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 July 2023.
How much traffic does IRR 1646C over Little Washita River carry?
About 100 vehicles per day (2022 count), of which roughly 15% are trucks.
How long is IRR 1646C over Little Washita River?
The structure is 172 ft (52.4 m) long with a longest span of 60 ft (18.3 m) and a deck 28 ft wide.
Who owns IRR 1646C over Little Washita River?
It is owned by the County Highway Agency.