US Bridges

US113/DUPONT Blvd. over Gravelly Branch

Fair

Sussex County, Delaware · North of Georgetown · Structure no. 3617 113

Built
1993
32 years old
Condition
Fair
inspected June 2021
Type
Culvert
Concrete
Length
22 ft
1 main span
Daily traffic
17,549
2020 count
Owner
State
State Highway Agency

About this bridge

US113/DUPONT Blvd. over Gravelly Branch is a concrete culvert carrying US113/DUPONT Blvd. over Gravelly Branch in Sussex County, Delaware. It was built in 1993, so it is 32 years old, younger than the Delaware average of 47.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 17,549 vehicles a day, roughly 9% of them trucks, projected to reach 21,812 by 2042. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS113/DUPONT Blvd.
CrossesGravelly Branch
LocationNorth of Georgetown
RouteU.S. Route 113
CountySussex County
StateDelaware
Coordinates38.75153, -75.43376
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.6 US tons
Inventory rating50 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length22 ft (6.7 m)
Longest span22 ft (6.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,549 (2020)
Projected traffic21,812 by 2042
Trucks9%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US113/DUPONT Blvd. over Gravelly Branch built?

It was built in 1993, making it 32 years old in 2025.

What condition is US113/DUPONT Blvd. over Gravelly Branch in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2021.

How much traffic does US113/DUPONT Blvd. over Gravelly Branch carry?

About 17,549 vehicles per day (2020 count), of which roughly 9% are trucks.

How long is US113/DUPONT Blvd. over Gravelly Branch?

The structure is 22 ft (6.7 m) long with a longest span of 22 ft (6.7 m).

Who owns US113/DUPONT Blvd. over Gravelly Branch?

It is owned by the State Highway Agency.