US Bridges

Smith Co. 504-C over Tishkill Creek

Good

Smith County, Mississippi · Sec 26 T 4N R 8E · Structure no. SA6500000000108

Built
2000
25 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete
Length
30 ft
2 main spans
Daily traffic
30
2021 count
Owner
County
County Highway Agency

About this bridge

Smith Co. 504-C over Tishkill Creek is a concrete culvert carrying Smith Co. 504-C over Tishkill Creek in Smith County, Mississippi. It was built in 2000, so it is 25 years old, younger than the Mississippi average of 38.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 30 vehicles a day, roughly 1% of them trucks, projected to reach 45 by 2043. The structure is 30 ft (9.2 m) long. If it were closed, the detour would be 123.7 mi (199 km).

CarriesSmith Co. 504-C
CrossesTishkill Creek
LocationSec 26 T 4N R 8E
RouteCounty Highway 276
Coordinates32.15229, -89.44499
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.5 US tons
Inventory rating42.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length30 ft (9.2 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2021)
Projected traffic45 by 2043
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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$550,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Smith Co. 504-C over Tishkill Creek built?

It was built in 2000, making it 25 years old in 2025.

What condition is Smith Co. 504-C over Tishkill Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.

How much traffic does Smith Co. 504-C over Tishkill Creek carry?

About 30 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is Smith Co. 504-C over Tishkill Creek?

The structure is 30 ft (9.2 m) long with a longest span of 14 ft (4.3 m).

Who owns Smith Co. 504-C over Tishkill Creek?

It is owned by the County Highway Agency.