US Bridges

I-77 Sbl over Route 69

Fair

Wythe County, Virginia · .20MTOCARCOLN&7.88MTO81 · Structure no. 000000000019594

Built
1978
47 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
282 ft
5 main spans
Daily traffic
18,093
2022 count
Owner
State
State Highway Agency

About this bridge

I-77 Sbl over Route 69 is a steel stringer/multi-beam or girder carrying I-77 Sbl over Route 69 in Wythe County, Virginia. It was built in 1978, so it is 47 years old, younger 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 5 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 18,093 vehicles a day, roughly 1% of them trucks, projected to reach 26,416 by 2045. The structure is 282 ft (86 m) long and 44 ft wide.

Location

Open in Google Maps
CarriesI-77 Sbl
CrossesRoute 69
Location.20MTOCARCOLN&7.88MTO81
RouteInterstate 77
CountyWythe County
StateVirginia
Coordinates36.84987, -80.86143
Functional classRural Principal Arterial - Interstate

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating65 US tons
Inventory rating50 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length282 ft (86 m)
Longest span70 ft (21.3 m)
Deck width44 ft (13.4 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,093 (2022)
Projected traffic26,416 by 2045
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$109.2 million (2019 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-77 Sbl over Route 69 built?

It was built in 1978, making it 47 years old in 2025.

What condition is I-77 Sbl over Route 69 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 2023.

How much traffic does I-77 Sbl over Route 69 carry?

About 18,093 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is I-77 Sbl over Route 69?

The structure is 282 ft (86 m) long with a longest span of 70 ft (21.3 m) and a deck 44 ft wide.

Who owns I-77 Sbl over Route 69?

It is owned by the State Highway Agency.