US Bridges

E Don / S Porter over Black Fork Creek Trib

FairPosted for load

Smith County, Texas · 0.45 MI S of SH 31 · Structure no. 102120B01350001

Built
1974
51 years old
Condition
Fair
inspected September 2023
Type
Culvert
Concrete
Length
39 ft
3 main spans
Daily traffic
210
2015 count
Owner
City
City or Municipal Highway Agency

About this bridge

E Don / S Porter over Black Fork Creek Trib is a concrete culvert carrying E Don / S Porter over Black Fork Creek Trib in Smith County, Texas. It was built in 1974, so it is 51 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 210 vehicles a day, projected to reach 1,000 by 2035. The structure is 39 ft (11.9 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesE Don / S Porter
CrossesBlack Fork Creek Trib
Location0.45 MI S of SH 31
RouteCity Street 0
CountySmith County
StateTexas
Coordinates32.33966, -95.27788
Functional classUrban 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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadUnknown
Structure length39 ft (11.9 m)
Longest span7 ft (2.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic210 (2015)
Projected traffic1,000 by 2035
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 E Don / S Porter over Black Fork Creek Trib built?

It was built in 1974, making it 51 years old in 2025.

What condition is E Don / S Porter over Black Fork Creek Trib 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 September 2023.

How much traffic does E Don / S Porter over Black Fork Creek Trib carry?

About 210 vehicles per day (2015 count).

How long is E Don / S Porter over Black Fork Creek Trib?

The structure is 39 ft (11.9 m) long with a longest span of 7 ft (2.1 m).

Who owns E Don / S Porter over Black Fork Creek Trib?

It is owned by the City or Municipal Highway Agency.