US Bridges

Smyrna-Leipsic RD over SR 1

Good

Kent County, Delaware · South Smyrna · Structure no. 2012C012

Built
1991
34 years old
Condition
Good
inspected September 2022
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
217 ft
2 main spans
Daily traffic
1,990
2021 count
Owner
State
State Highway Agency

About this bridge

Smyrna-Leipsic RD over SR 1 is a steel continuous stringer/multi-beam or girder carrying Smyrna-Leipsic RD over SR 1 in Kent County, Delaware. It was built in 1991, so it is 34 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,990 vehicles a day, roughly 13% of them trucks, projected to reach 2,183 by 2042. The structure is 217 ft (66.2 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesSmyrna-Leipsic RD
CrossesSR 1
LocationSouth Smyrna
RouteCounty Highway 12
CountyKent County
StateDelaware
Coordinates39.29157, -75.59352
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionSeptember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.5 US tons
Inventory rating44.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length217 ft (66.2 m)
Longest span105 ft (32 m)
Deck width47 ft (14.2 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,990 (2021)
Projected traffic2,183 by 2042
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Smyrna-Leipsic RD over SR 1 built?

It was built in 1991, making it 34 years old in 2025.

What condition is Smyrna-Leipsic RD over SR 1 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 2022.

How much traffic does Smyrna-Leipsic RD over SR 1 carry?

About 1,990 vehicles per day (2021 count), of which roughly 13% are trucks.

How long is Smyrna-Leipsic RD over SR 1?

The structure is 217 ft (66.2 m) long with a longest span of 105 ft (32 m) and a deck 47 ft wide.

Who owns Smyrna-Leipsic RD over SR 1?

It is owned by the State Highway Agency.