US Bridges

SR1761 over I40

Fair

Burke County, North Carolina · .1 MI.N.JCT.SR1770 · Structure no. 000000000230171

Built
1956
69 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
237 ft
4 main spans
Daily traffic
4,200
2021 count
Owner
State
State Highway Agency

About this bridge

SR1761 over I40 is a steel stringer/multi-beam or girder carrying SR1761 over I40 in Burke County, North Carolina. It was built in 1956, so it is 69 years old, older than the North Carolina average of 38.7 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 4,200 vehicles a day, roughly 7% of them trucks, projected to reach 8,400 by 2040. The structure is 237 ft (72.2 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSR1761
CrossesI40
Location.1 MI.N.JCT.SR1770
RouteState Highway 1761
CountyBurke County
StateNorth Carolina
Coordinates35.70978, -81.43969
Functional classUrban 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58 US tons
Inventory rating34.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 15
Structure length237 ft (72.2 m)
Longest span65 ft (19.8 m)
Deck width34 ft (10.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,200 (2021)
Projected traffic8,400 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.9 mi (3 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR1761 over I40 built?

It was built in 1956, making it 69 years old in 2025.

What condition is SR1761 over I40 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 October 2023.

How much traffic does SR1761 over I40 carry?

About 4,200 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is SR1761 over I40?

The structure is 237 ft (72.2 m) long with a longest span of 65 ft (19.8 m) and a deck 34 ft wide.

Who owns SR1761 over I40?

It is owned by the State Highway Agency.