Table 12 



Wave Heights for Plan 9 for Boat Waves, swi = +3.5 ft (No Flow Conditions) 



Boat Type 

 Direction 



Wave Height, ft, at Indicated Gauge Location 



Gauge 1 



Gauge 2 



Gauge 3 



Gauge 4 



Gauge 5 



Gauge 6 



90-ft Speed boat 

 Leaving St. Clair River 

 Entering St. Clair River 



1.0 

 0.4 



0.4 

 0.2 



0.4 

 0.2 



0.4 

 0.2 



0.7 

 0.2 



0.5 

 0.2 



100-ft Cabin cruiser 

 Leaving St. Clair River 

 Entering St. Clair River 



0.8 

 0.6 



0.2 

 0.3 



0.1 

 0.3 



0.4 

 0.2 



0.3 

 0.2 



0.3 

 0.2 



600-ft Ore carrier 

 Leaving St. Clair River 

 Entering St. Clair River 



0.1 

 0.1 



0.1 

 0.1 



0.1 

 0.1 



0.1 

 0.1 



0.1 

 0.1 



0.1 

 0.2 



690-ft Container vessel 

 Leaving St. Clair River 

 Entering St. Clair River 



0.1 

 0.1 



0.1 

 0.1 



0.1 

 0.1 



0.1 

 0.1 



0.1 

 0.1 



0.1 

 0.1 



with the +1.07-m (+3.5-ft) swl and no flow conditions. For the 59 deg 

 direction, maximum wave heights were 1.10 m (3.6 ft) in the harbor entrance; 

 0.82 m (2.7 ft) in the southwest portion of the harbor; 0.73 m (2.4 ft) in the 

 northwest portion of the harbor; and 0.98 m (3.2 ft) along the existing dock all for 

 7.0-sec, 2.68-m (8.8-ft) waves with the +1.07-m (+3.5-ft) swl with river flow 

 conditions. For 1.22-m (4.0-ft) waves, heights ranged from 0.21 to 0.27 m (0.7 to 

 0.9 ft) in the entrance; 0.18 to 0.27 m (0.6 to 0.9 ft) in the southwest portion of the 

 harbor; 0.9 to 0.15 m (0.3 to 0.5 ft) in the northwest portion of the harbor; and 

 0.21 to 0.37 m (0.7 to 1.2 ft) along the dock for the 1 1 deg direction. For the 

 59 deg direction, 1.22-m (4.0-ft) incident waves resulted in heights ranging from 

 0.37 to 0.58 m (1.2 to 1.9 ft) in the entrance; 0.34 to 0.55 m (1.1 to 1.8 ft) in the 

 southwest portion of the harbor; 0.21 to 0.34 m (0.7 to 1.1 ft) in the northwest 

 portion of the harbor; and 0.34 to 0.70 m (1.1 to 2.3 ft) along the existing dock. 



Current patterns and magnitudes obtained for Plan 10 are presented in 

 Photos 137-152 for various wave conditions for the 11 and 59 deg directions for 

 both no flow and riverflow conditions. For all conditions, currents moved 

 southerly along the shoreline past the harbor and created weak eddies inside the 

 harbor entrance. Maximum velocities were as follows: 



Wave 

 Direction 



swl, m (ft) 



Riverflow 



Maximum Velocities, mps (fps) || 



North of 

 Harbor 



Lakeward of 

 Harbor 



South of 

 Harbor 



11 deg 



+0.52 (+1.7) 



No 



1 .07 (3.5) 



0.40 (1 .3) 



0.40(1.3) 







Yes 



0.70 (2.3) 



0.94(3.1) 



0.98 (3.2) 





+ 1.07 (+3.5) 



No 



0.70 (2.3) 



0.98 (3.2) 



0.18(0.6) 







Yes 



0.58 (1 .9) 



0.98 (3.2) 



0.30 (1 .0) 



59 deg 



+0.52 (+1.7) 



No 



0.70 (2.3) 



0.98 (3.2) 



0.70 (2.3) 







Yes 



0.73 (2.4) 



1 .05 (3.4) 



0.73 (2.4) 





+ 1.07 (+3.5) 



No 



0.64(2.1) 



0.82 (2.7) 



0.55 (1 .8) 







Yes 



0.98 (3.2) 



0.85 (2.8) 



0.70 (2.3) 



54 



Chapter 6 Physical Model 



