US Bridges

SR1603 over Dial Creek

Fair

Durham County, North Carolina · 0.45 MI W.Jct SR1607 · Structure no. 000000000630018

Built
1987
38 years old
Condition
Fair
inspected August 2023
Type
Culvert
Steel
Length
26 ft
2 main spans
Daily traffic
60
2000 count
Owner
State
State Highway Agency

About this bridge

SR1603 over Dial Creek is a steel culvert carrying SR1603 over Dial Creek in Durham County, North Carolina. It was built in 1987, so it is 38 years old, younger 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 60 vehicles a day, roughly 6% of them trucks, projected to reach 120 by 2040. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesSR1603
CrossesDial Creek
Location0.45 MI W.Jct SR1607
RouteState Highway 1603
CountyDurham County
StateNorth Carolina
Coordinates36.20198, -78.85247
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length26 ft (7.9 m)
Longest span12 ft (3.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2000)
Projected traffic120 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR1603 over Dial Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is SR1603 over Dial Creek 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 August 2023.

How much traffic does SR1603 over Dial Creek carry?

About 60 vehicles per day (2000 count), of which roughly 6% are trucks.

How long is SR1603 over Dial Creek?

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.6 m).

Who owns SR1603 over Dial Creek?

It is owned by the State Highway Agency.