Offsite Detouranalysis

Calculation of detour length

Distance along SR 1003 0.54 + 0.66 = 1.20

0.54

0.66

Distance along SR 2321 0.91 + 0.47 + 0.66 = 2.04

Total Miles = 3.24

0.91

0.47

0.66

Calculation of detour length

Distance along SR 1003 0.54 + 0.66 = 1.20

1.47

Distance along SR 2321 0.91 + 0.47 + 0.66 = 2.04

Total Miles = 3.24

0.66

Length of road normally travelled Distance along SR 2320 1.47 + 0.66 = 2.13

Additional travel length due to detour Detour length – length normally travelled 3.24 – 2.13 = 1.11

Additional travel length due to detour Detour length – length normally travelled 3.24 – 2.13 = 1.11

Estimated length of construction Simple 3 span bridge replacement project 10 months

Additional travel time due to detour Additional travel length times60 / Speed limit

(1.11 miles)(60)/45 = 1.48 minutes

Designated detour is acceptable according to the guidelines

Additional travel length due to detour Detour length – length normally travelled 15

Estimated length of construction Simple 3 span bridge replacement project 10 months

Additional travel time due to detour Additional travel length times60 / Speed limit

(15 miles)(60)/45 = 20 minutes

Designated detour is unacceptable according to the guidelines