Brown Bridge Road closed near Boardman River bridge after safety issue

Brown Bridge Road was closed in both directions near the Boardman River bridge Monday after county crews found an emergency safety issue at the culvert crossing, shutting down the stretch between Ranch Rudolph Road and Arbutus Hill Road until further notice. The closure hits one of Grand Traverse County’s most flood-sensitive corridors and leaves drivers to reroute around a section that serves the Brown Bridge area and nearby river access points.

Grand Traverse County Road Commission crews had been examining crossings after the recent storm when they identified a problem at the bridge. Crews began sandbag stabilization on April 28, 2026, before deciding what comes next. County public safety and first responder agencies also developed a response plan for the affected area if needed, underscoring how seriously officials are treating the crossing.

The shutdown comes amid a wider flood recovery effort across Grand Traverse County. County officials declared a local state of emergency on April 14 because of ongoing and expected flooding impacts, after heavy rain pushed the Boardman, also known as the Ottaway River, to levels rarely seen in recorded history. Near Mayfield and Brown Bridge, the river reached 7.8 feet that day. National Weather Service flood guidance says water begins to impact Brown Bridge Road near Ranch Rudolf at 8 feet, and NOAA guidance says the deck of the bridge near the entrance to Ranch Rudolf is reached at 9.4 feet.

The upstream gauge above Brown Bridge Road near Mayfield recorded 1,120 cubic feet per second on April 14, a reading that exceeded the prior record of 583 cfs from April 14, 2014 by 92 percent. That surge helps explain why Brown Bridge has once again become a flash point in the county’s flood response.

The Grand Traverse Conservation District has warned against river activity upstream from the affected bridge, and signage and caution tape have been placed at river access sites above it. The county’s broader storm damage has already included a Beitner Road washout and sinkhole and erosion problems downtown, while the road commission continues other emergency repair work, including flood-damaged Sawyer Road.

For residents who live along the corridor and for anyone trying to reach the Boardman River area, the closure is another sign that the April flooding strained county infrastructure well beyond the riverbanks. County officials said updates will follow as conditions develop.