US Bridges

CR 431 (old SH 37) over Duck Creek

FairPosted for load

Smith County, Texas · 2.75 MI NW of US 69 · Structure no. 102120AA0431101

Built
1921
104 years old, rebuilt 1975
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
99 ft
4 main spans
Daily traffic
1,077
2018 count
Owner
County
County Highway Agency

About this bridge

CR 431 (old SH 37) over Duck Creek is a steel stringer/multi-beam or girder carrying CR 431 (old SH 37) over Duck Creek in Smith County, Texas. It was built in 1921 and reconstructed in 1975, so it is 104 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. Its operating status is: posted for load restriction.

It carries about 1,077 vehicles a day, projected to reach 1,000 by 2035. The structure is 99 ft (30.2 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesCR 431 (old SH 37)
CrossesDuck Creek
Location2.75 MI NW of US 69
RouteCounty Highway 431
CountySmith County
StateTexas
Coordinates32.54568, -95.44466
Functional classRural Minor Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length99 ft (30.2 m)
Longest span25 ft (7.6 m)
Deck width29 ft (8.8 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,077 (2018)
Projected traffic1,000 by 2035
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$55,000
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 431 (old SH 37) over Duck Creek built?

It was built in 1921, making it 104 years old in 2025. It was reconstructed in 1975.

What condition is CR 431 (old SH 37) over Duck 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 October 2023.

How much traffic does CR 431 (old SH 37) over Duck Creek carry?

About 1,077 vehicles per day (2018 count).

How long is CR 431 (old SH 37) over Duck Creek?

The structure is 99 ft (30.2 m) long with a longest span of 25 ft (7.6 m) and a deck 29 ft wide.

Who owns CR 431 (old SH 37) over Duck Creek?

It is owned by the County Highway Agency.