US Bridges

US 13 Sbl By-Pass over NS Railway

Fair

Suffolk city, Virginia · 0.45 MI.FR.INT.RTE.58 Bus · Structure no. 000000000022062

Built
1974
51 years old, rebuilt 2001
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
552 ft
6 main spans
Daily traffic
21,330
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

US 13 Sbl By-Pass over NS Railway is a steel continuous stringer/multi-beam or girder carrying US 13 Sbl By-Pass over NS Railway in Suffolk city, Virginia. It was built in 1974 and reconstructed in 2001, so it is 51 years old, older than the Virginia average of 50.7 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 21,330 vehicles a day, roughly 1% of them trucks, projected to reach 31,143 by 2045. The structure is 552 ft (168.2 m) long and 57 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesUS 13 Sbl By-Pass
CrossesNS Railway
Location0.45 MI.FR.INT.RTE.58 Bus
RouteU.S. Route 13
Coordinates36.73006, -76.62924
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.1 US tons
Inventory rating40.2 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans6 (+2 approach)
Design loadHS 20 + Mod
Structure length552 ft (168.2 m)
Longest span95 ft (29 m)
Deck width57 ft (17.3 m)
Roadway width53 ft (16.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,330 (2022)
Projected traffic31,143 by 2045
Trucks1%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 US 13 Sbl By-Pass over NS Railway built?

It was built in 1974, making it 51 years old in 2025. It was reconstructed in 2001.

What condition is US 13 Sbl By-Pass over NS Railway 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 April 2023.

How much traffic does US 13 Sbl By-Pass over NS Railway carry?

About 21,330 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is US 13 Sbl By-Pass over NS Railway?

The structure is 552 ft (168.2 m) long with a longest span of 95 ft (29 m) and a deck 57 ft wide.

Who owns US 13 Sbl By-Pass over NS Railway?

It is owned by the City or Municipal Highway Agency.