The low-water crossing was contracted and constructed in 1998. Table 2 provides a detailed breakdown of the construction of this 70 ft bridge that crossed a waterway with an 8500 ac watershed. Tasks for the concrete bridge included 12 hours of permit data collection and write up; six hours of field visits to collect bids; 16 hours of culvert and form transport; and 80 hours for culvert installation. Finally 16 hours were spent pouring concrete.

130 hours @ $12.50/hour on bridge	$ 1625
120 yd3 of concrete @ $75/yd3	$ 9000
8 36 in. x 20 ft culverts @ $300/ea.	$ 2400
4 24 in. x 20 ft culverts @ $240/ea.	$ 960
30 tons of gravel delivered @ $6.25/ton	$ 187
40 hours of backhoe @ $45/hour	$ 1800
2 rolls of reinforcement wire at $65.00/roll	$ 130
Estimated profit for contractor	$ 6897
Total	$23,000
TABLE 2. Construction time and costs for the 70 ft low-water concrete and pipe crossing.