US Bridges

SR1734 over I40

Fair

Orange County, North Carolina · 0.7 Mi. N. Jct. SR1733 · Structure no. 000000001350258

Built
1986
39 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
197 ft
2 main spans
Daily traffic
4,800
2021 count
Owner
State
State Highway Agency

About this bridge

SR1734 over I40 is a steel stringer/multi-beam or girder carrying SR1734 over I40 in Orange County, North Carolina. It was built in 1986, so it is 39 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 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 4,800 vehicles a day, roughly 6% of them trucks, projected to reach 9,600 by 2040. The structure is 197 ft (60 m) long and 29 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesSR1734
CrossesI40
Location0.7 Mi. N. Jct. SR1733
RouteState Highway 1734
CountyOrange County
StateNorth Carolina
Coordinates35.95989, -79.0126
Functional classUrban Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
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 rating99 US tons
Inventory rating73 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20 + Mod
Structure length197 ft (60 m)
Longest span102 ft (31 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,800 (2021)
Projected traffic9,600 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 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 SR1734 over I40 built?

It was built in 1986, making it 39 years old in 2025.

What condition is SR1734 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 April 2024.

How much traffic does SR1734 over I40 carry?

About 4,800 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is SR1734 over I40?

The structure is 197 ft (60 m) long with a longest span of 102 ft (31 m) and a deck 29 ft wide.

Who owns SR1734 over I40?

It is owned by the State Highway Agency.