Virtual Workshop:

Ingram Branch Road over Prince Prong (Bridge 2-291A)

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Welcome to the Delaware Department of Transportation's Virtual Workshop. The goals of the virtual workshop format are to make it easier for more people to view the project information, and to reduce the costs involved in traditional public workshops. This is a workshop regarding the replacement of Bridge 2-291A on Ingram Branch Road over Prince Prong, West of Harrington in Kent County.

[Location Map] Bridge 2-291A has been identified by DelDOT's Bridge Management Section as being in need of replacement. The bridge is located on Ingram Branch Road over Prince Prong, West of Harrington, in Kent County.


[End Elevation] Bridge 2-291A consists of three corrugated metal arch pipes. It has riprap at the inlet and outlet of the existing pipes. The stream channel is meandering with two streams coming together at the inlet. At the outlet, the stream widens to one large stream.

[Corrosion of Pipe Arch Surface] and [Deterioration of Pipe Arches] The metal arches of this bridge consists of galvanized steel and has been in place for approximately 30 years. Although most of the arch has held up well, the area just above the water line has experienced loss of galvanizing and the formation of a heavy rust scale. Because of this, there has been a significant loss of metal at the base of the arch and holes have started to form in several locations. This loss of metal and the resulting holes will eventually lead to the inability of the arch to carry the traffic load of Ingram Branch.

[Bridge Plan, Section, and Elevation] As seen on the bridge plan, section, and elevation sheet, DelDOT proposes to replace the existing arch structures with three reinforced concrete elliptical pipes. The decision to choose reinforced concrete pipes was mainly for the simplicity of the project. They are the best choice for expediting construction and will allow more water to flow underneath the roadway. The existing road consists of two 9' lanes. Once the new pipes are in place, the road on top will be widened to 10' lanes inside of the project limits. This is approximately 200' south of the bridge and 150' north of the bridge. The ride ability will be improved by this work. There will not be any geometric changes to the road alignment. Additionally, riprap will be placed into the streambed, and along the side slopes to protect the proposed bridge and prevent scour or erosion of the stream channel. This work should take approximately 30 to 45 days for completion.

[Detour Plan] During construction, the road will have to be closed in order to perform the proposed work. As you can see, a temporary detour has been planned to accommodate the traveling public

[Detour Map] This map more clearly demonstrates the route that thru-traffic will take during the temporary road closure. Motorists will be given advance notice of this closure at Whiteleysburg Road (Road 59) and Brownsville Road (Road 111). From Whiteleysburg Road, all motorists will be directed to take Bullock Road (Road 292). Motorists will then be directed to turn right onto Brownsville Road and then turn right onto Ingram Branch Road. From Brownsville Road, motorists will be directed to also use Bullock Road. They will then be directed to turn left onto Whiteleysburg Road then onto Ingram Branch Road. Due to this project being in a predominate rural area, there will not be a pedestrian detour during the duration of this project. No through traffic will be allowed during the duration of the project.

[Construction plan] Although DelDOT strives to perform as much of the work as possible within the department's existing right-of-way, sometimes the nature of the work requires a larger area than what is provided. That is the case for this project. As can be seen on the plan sheet, right-of-way and easements will be needed from adjacent property owners in order to complete the work. Some large trees will have to be removed also to complete this work in the area of the streams. Right of way will be required for the placement and maintenance of the riprap in and around the stream. The rip-rap will be buried and covered with streambed material in the stream, or topsoil, grass seed, and mulch on the stream banks. Temporary construction easements will be needed beyond the right-of-way for the placement of sandbags and to divert the stream flow so the in-stream work can be completed. These areas will be restored to their natural condition upon completion of the work.

A Real Estate representative will be in contact with the affected property owners to explain the Department's real estate process.

If you would like to make comments, you may submit them online by clicking on the link above, "Send us your comments", or you may call toll free to 800-652-5600, or call locally in the Dover area 760-2120. Comments may also be mailed to DelDOT Community Relations P.O. Box 78, Dover, Delaware, 19903. Comments are due within 30 days of the posting of this virtual workshop on the internet.

Thank you for participating in the Delaware Department of Transportation's Virtual Workshop.