US Bridges

Sl 323 over Black Fork Crk Br

Good

Smith County, Texas · 0.4 MI W of FM 14 · Structure no. 102120207501001

Built
1956
69 years old, rebuilt 1970
Condition
Good
inspected March 2023
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
17,235
2021 count
Owner
State
State Highway Agency

About this bridge

Sl 323 over Black Fork Crk Br is a concrete culvert carrying Sl 323 over Black Fork Crk Br in Smith County, Texas. It was built in 1956 and reconstructed in 1970, so it is 69 years old, older than the Texas average of 44.4 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 17,235 vehicles a day, roughly 28% of them trucks, projected to reach 24,129 by 2041. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSl 323
CrossesBlack Fork Crk Br
Location0.4 MI W of FM 14
RouteState Highway 323
CountySmith County
StateTexas
Coordinates32.39065, -95.29294
Functional classUrban Other Principal Arterial

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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadOther
Structure length22 ft (6.7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,235 (2021)
Projected traffic24,129 by 2041
Trucks28%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$33,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Sl 323 over Black Fork Crk Br built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1970.

What condition is Sl 323 over Black Fork Crk Br 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 March 2023.

How much traffic does Sl 323 over Black Fork Crk Br carry?

About 17,235 vehicles per day (2021 count), of which roughly 28% are trucks.

How long is Sl 323 over Black Fork Crk Br?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m).

Who owns Sl 323 over Black Fork Crk Br?

It is owned by the State Highway Agency.