US Bridges

US29 & US601 Nbl over Irish Buffalo Creek

Poor

Cabarrus County, North Carolina · 0.1 Mi. N. Jct. SR1394 · Structure no. 000000000250057

Built
1951
74 years old
Condition
Poor
inspected May 2023
Type
Tee Beam
Concrete
Length
172 ft
3 main spans
Daily traffic
14,750
2018 count
Owner
State
State Highway Agency

About this bridge

US29 & US601 Nbl over Irish Buffalo Creek is a concrete tee beam carrying US29 & US601 Nbl over Irish Buffalo Creek in Cabarrus County, North Carolina. It was built in 1951, so it is 74 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 14,750 vehicles a day, roughly 12% of them trucks, projected to reach 29,500 by 2040. The structure is 172 ft (52.4 m) long and 33 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS29 & US601 Nbl
CrossesIrish Buffalo Creek
Location0.1 Mi. N. Jct. SR1394
RouteU.S. Route 29
Coordinates35.41506, -80.61332
Functional classUrban Other Principal Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58 US tons
Inventory rating34.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length172 ft (52.4 m)
Longest span56 ft (17 m)
Deck width33 ft (10.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,750 (2018)
Projected traffic29,500 by 2040
Trucks12%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US29 & US601 Nbl over Irish Buffalo Creek built?

It was built in 1951, making it 74 years old in 2025.

What condition is US29 & US601 Nbl over Irish Buffalo Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2023.

How much traffic does US29 & US601 Nbl over Irish Buffalo Creek carry?

About 14,750 vehicles per day (2018 count), of which roughly 12% are trucks.

How long is US29 & US601 Nbl over Irish Buffalo Creek?

The structure is 172 ft (52.4 m) long with a longest span of 56 ft (17 m) and a deck 33 ft wide.

Who owns US29 & US601 Nbl over Irish Buffalo Creek?

It is owned by the State Highway Agency.