US Bridges

Commerce ST over Douglas Branch

FairPosted for load

Smith County, Texas · 1.10 MI W of Lp 323 · Structure no. 102120B01090001

Built
1937
88 years old, rebuilt 1950
Condition
Fair
inspected September 2023
Type
Culvert
Masonry
Length
37 ft
3 main spans
Daily traffic
3,670
2015 count
Owner
City
City or Municipal Highway Agency

About this bridge

Commerce ST over Douglas Branch is a masonry culvert carrying Commerce ST over Douglas Branch in Smith County, Texas. It was built in 1937 and reconstructed in 1950, so it is 88 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 3,670 vehicles a day, projected to reach 5,000 by 2035. The structure is 37 ft (11.3 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesCommerce ST
CrossesDouglas Branch
Location1.10 MI W of Lp 323
RouteCity Street 0
CountySmith County
StateTexas
Coordinates32.35588, -95.28796
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
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be 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
MaterialMasonry
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length37 ft (11.3 m)
Longest span10 ft (3 m)
Deck width50 ft (15.2 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,670 (2015)
Projected traffic5,000 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 Commerce ST over Douglas Branch built?

It was built in 1937, making it 88 years old in 2025. It was reconstructed in 1950.

What condition is Commerce ST over Douglas Branch 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 Commerce ST over Douglas Branch carry?

About 3,670 vehicles per day (2015 count).

How long is Commerce ST over Douglas Branch?

The structure is 37 ft (11.3 m) long with a longest span of 10 ft (3 m) and a deck 50 ft wide.

Who owns Commerce ST over Douglas Branch?

It is owned by the City or Municipal Highway Agency.