US Bridges

FM 643 over Duck Creek Tributary

Good

Kent County, Texas · 0.7 MI W of FM 1228 · Structure no. 081320096501002

Built
1958
67 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
100
2020 count
Owner
State
State Highway Agency

About this bridge

FM 643 over Duck Creek Tributary is a concrete culvert carrying FM 643 over Duck Creek Tributary in Kent County, Texas. It was built in 1958, so it is 67 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 100 vehicles a day, roughly 17% of them trucks, projected to reach 90 by 2033. The structure is 22 ft (6.7 m) long and 33 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesFM 643
CrossesDuck Creek Tributary
Location0.7 MI W of FM 1228
RouteState Highway 643
CountyKent County
StateTexas
Coordinates33.35618, -100.71134
Functional classRural Minor Collector

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 inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadOther
Structure length22 ft (6.7 m)
Longest span10 ft (3 m)
Deck width33 ft (10.2 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2020)
Projected traffic90 by 2033
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemNo

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 FM 643 over Duck Creek Tributary built?

It was built in 1958, making it 67 years old in 2025.

What condition is FM 643 over Duck Creek Tributary 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 May 2023.

How much traffic does FM 643 over Duck Creek Tributary carry?

About 100 vehicles per day (2020 count), of which roughly 17% are trucks.

How long is FM 643 over Duck Creek Tributary?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m) and a deck 33 ft wide.

Who owns FM 643 over Duck Creek Tributary?

It is owned by the State Highway Agency.