US Bridges

FM 309 over Jacks Branch

Fair

Hill County, Texas · 3.9 MI NW of SH 22 · Structure no. 091100088802010

Built
1987
38 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
61 ft
2 main spans
Daily traffic
497
2020 count
Owner
State
State Highway Agency

About this bridge

FM 309 over Jacks Branch is a concrete stringer/multi-beam or girder carrying FM 309 over Jacks Branch in Hill County, Texas. It was built in 1987, so it is 38 years old, younger 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 497 vehicles a day, roughly 17% of them trucks, projected to reach 640 by 2039. The structure is 61 ft (18.6 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesFM 309
CrossesJacks Branch
Location3.9 MI NW of SH 22
RouteState Highway 309
CountyHill County
StateTexas
Coordinates32.03844, -97.19731
Functional classRural Major 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length61 ft (18.6 m)
Longest span30 ft (9.1 m)
Deck width36 ft (11 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic497 (2020)
Projected traffic640 by 2039
Trucks17%
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

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$500,000
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 309 over Jacks Branch built?

It was built in 1987, making it 38 years old in 2025.

What condition is FM 309 over Jacks 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 November 2024.

How much traffic does FM 309 over Jacks Branch carry?

About 497 vehicles per day (2020 count), of which roughly 17% are trucks.

How long is FM 309 over Jacks Branch?

The structure is 61 ft (18.6 m) long with a longest span of 30 ft (9.1 m) and a deck 36 ft wide.

Who owns FM 309 over Jacks Branch?

It is owned by the State Highway Agency.