US Bridges

Sl 323 EB over Black Fork Creek

Fair

Smith County, Texas · 1.0 MI NE of US 69 · Structure no. 102120207501006

Built
1970
55 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
171 ft
5 main spans
Daily traffic
8,265
2023 count
Owner
State
State Highway Agency

About this bridge

Sl 323 EB over Black Fork Creek is a concrete stringer/multi-beam or girder carrying Sl 323 EB over Black Fork Creek in Smith County, Texas. It was built in 1970, so it is 55 years old, older than the Texas average of 44.4 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 8,265 vehicles a day, roughly 20% of them trucks, projected to reach 12,340 by 2033. The structure is 171 ft (52.1 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSl 323 EB
CrossesBlack Fork Creek
Location1.0 MI NE of US 69
RouteState Highway 323
StateTexas
Coordinates32.38741, -95.31722
Functional classUrban Other Principal 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.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length171 ft (52.1 m)
Longest span34 ft (10.4 m)
Deck width42 ft (12.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,265 (2023)
Projected traffic12,340 by 2033
Trucks20%
Lanes on structure2
Traffic directionOne-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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Sl 323 EB over Black Fork Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is Sl 323 EB over Black Fork 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 March 2023.

How much traffic does Sl 323 EB over Black Fork Creek carry?

About 8,265 vehicles per day (2023 count), of which roughly 20% are trucks.

How long is Sl 323 EB over Black Fork Creek?

The structure is 171 ft (52.1 m) long with a longest span of 34 ft (10.4 m) and a deck 42 ft wide.

Who owns Sl 323 EB over Black Fork Creek?

It is owned by the State Highway Agency.