US Bridges

West Railroad Ave over Isaac Branch

Good

Kent County, Delaware · Wyoming · Structure no. 2195A195

Built
2013
12 years old
Condition
Good
inspected September 2021
Type
Tee Beam
Prestressed Concrete Continuous
Length
64 ft
1 main span
Daily traffic
6,220
2020 count
Owner
State
State Highway Agency

About this bridge

West Railroad Ave over Isaac Branch is a prestressed concrete continuous tee beam carrying West Railroad Ave over Isaac Branch in Kent County, Delaware. It was built in 2013, so it is 12 years old, younger than the Delaware average of 47.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 6,220 vehicles a day, roughly 7% of them trucks, projected to reach 7,731 by 2042. The structure is 64 ft (19.5 m) long and 47 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

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CarriesWest Railroad Ave
CrossesIsaac Branch
LocationWyoming
RouteState Highway 15
CountyKent County
StateDelaware
Coordinates39.12315, -75.5555
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.3 US tons
Inventory rating54.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length64 ft (19.5 m)
Longest span60 ft (18.3 m)
Deck width47 ft (14.4 m)
Roadway width45 ft (13.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,220 (2020)
Projected traffic7,731 by 2042
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$540,000
NavigationNo navigation control on waterway

Frequently asked questions

When was West Railroad Ave over Isaac Branch built?

It was built in 2013, making it 12 years old in 2025.

What condition is West Railroad Ave over Isaac Branch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2021.

How much traffic does West Railroad Ave over Isaac Branch carry?

About 6,220 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is West Railroad Ave over Isaac Branch?

The structure is 64 ft (19.5 m) long with a longest span of 60 ft (18.3 m) and a deck 47 ft wide.

Who owns West Railroad Ave over Isaac Branch?

It is owned by the State Highway Agency.