US Bridges

Christanna Higway over Route I-85 (sbl)

Fair

Brunswick County, Virginia · .36 FR 378 & .12 to 648 · Structure no. 000000000003577

Built
1969
56 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
171 ft
3 main spans
Daily traffic
1,775
2022 count
Owner
State
State Highway Agency

About this bridge

Christanna Higway over Route I-85 (sbl) is a prestressed concrete stringer/multi-beam or girder carrying Christanna Higway over Route I-85 (sbl) in Brunswick County, Virginia. It was built in 1969, so it is 56 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 1,775 vehicles a day, roughly 1% of them trucks, projected to reach 1,991 by 2042. The structure is 171 ft (52 m) long and 36 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesChristanna Higway
CrossesRoute I-85 (sbl)
Location.36 FR 378 & .12 to 648
RouteState Highway 46
CountyBrunswick County
StateVirginia
Coordinates36.84598, -77.9156
Functional classRural Major Collector

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 inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating43 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length171 ft (52 m)
Longest span68 ft (20.7 m)
Deck width36 ft (11 m)
Roadway width33 ft (10 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,775 (2022)
Projected traffic1,991 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed6.8 mi (11 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$548 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Christanna Higway over Route I-85 (sbl) built?

It was built in 1969, making it 56 years old in 2025.

What condition is Christanna Higway over Route I-85 (sbl) 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 February 2024.

How much traffic does Christanna Higway over Route I-85 (sbl) carry?

About 1,775 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Christanna Higway over Route I-85 (sbl)?

The structure is 171 ft (52 m) long with a longest span of 68 ft (20.7 m) and a deck 36 ft wide.

Who owns Christanna Higway over Route I-85 (sbl)?

It is owned by the State Highway Agency.