Ames to Audubon 400k — Pre-Ride Dispatch

Start Location

Quality Inn — Ames

2601 E 13th St

Ames, IA 50010

Critical Route Information

⚠ Dana Area Road Closure — Active Reroute in Effect Co Hwy P46 (E-26) is closed east of Dana. The brevet route has been rerouted to avoid this closure. The updated GPS file is live on the event page — download the current route before the ride.
⚠ Reroute includes unpaved gravel sections — be prepared

We used a new route-scanning tool called RouteClear to proactively check the full route against Iowa 511 road closure data. This surfaced the P46/E-26 closure east of Dana in time to reroute before the event. The updated route is on RideWithGPS and is also linked from the event page.

View Updated Route on RideWithGPS →

⊕

RouteClear app showing 3 closures on the Ames to Audubon route

RouteClear scan — 3 closures detected. Co Hwy P46 county closure at ~304 km.

⊕

Map showing closure on 170th St east of Dana near Little Beaver Creek

Co Hwy P46 closure east of Dana near Little Beaver Creek. Reroute uses alternate county roads with gravel sections.

Click images to enlarge. The two Granger shoulder closures (NW 114th St, NW 106th Ave) are non-impacting.

Questions & Contact

Questions about the route or event? Contact the Iowa Randonneurs RBA at iowarandosrba@gmail.com.

Full event details, registration, and brevet card: iowarandos.org/event/ames-to-audubon-400k-2026/