Flood Stage information for Walnut Creek at Diamond Boulevard

Flood Control District Logo

Flood Stage Estimate for

Walnut Creek @ Diamond Boulevard

WDB on Walnut Creek, Concord

Flood stages have been determined for this stream gauge located

on Diamond Blvd Bridge over Walnut Creek in Concord.

Gauge Location Link

Flood Stage Report and Maps

Please report flooding location and time:

Click to report Flooding from Walnut Creek including time and location.

The plot below shows the latest stage data with horizontal lines

for the gauge stages at locations in the table below.

Plot of Walnut Creek at Diamond Boulevard water level for 1 day with flood stages.

FLOOD STAGES

Readings at the gauge that could indicate flooding at the location.

Flooding Order

Gauge Stage

Flooding Locations

2nd

15.5

East Buchanan Field Airport

1st

15.3

SE corner of Buchanan Field Airport  | Hilton Concord  | 200 John Glen Drive

How was the flood stage developed?

Computer Model

Existing models were used for this gauge.

Certainty of flood stage accuracy?

We have 95% confidence in the model results.

The model was developed by the Corps of Engineers and has possibly been modified by others. We updated a replaced bridge.     

Future Efforts

The FC District may send postcard information to properties along the creek. This could include information on how they can help fine-tune the flood stage by reporting where and when flooding is experienced.

View Walnut Creek @ Diamond Boulevard flood stages: WDB Direct Plot Link.

 Click to report Flooding from Walnut Creek including time and location.

Click here for Flood Stage Report and Maps

Date: 3/13/2026 12:22:09

File location: G:\fldctl\Hydrology\Streamflow\Flood Stage Information Web Docs\AA-Merge_HTML.docm