US Bridges

FM 624 over Old Nueces River Channel

Fair

McMullen County, Texas · 7.70 MI W of SH 16 · Structure no. 151620237302022

Built
1964
61 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
670 ft
3 main spans
Daily traffic
941
2023 count
Owner
State
State Highway Agency

About this bridge

FM 624 over Old Nueces River Channel is a steel continuous stringer/multi-beam or girder carrying FM 624 over Old Nueces River Channel in McMullen County, Texas. It was built in 1964, so it is 61 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.

It carries about 941 vehicles a day, roughly 33% of them trucks, projected to reach 1,317 by 2042. The structure is 670 ft (204.2 m) long and 31 ft wide. If it were closed, the detour would be 70.8 mi (114 km).

CarriesFM 624
CrossesOld Nueces River Channel
Location7.70 MI W of SH 16
RouteState Highway 624
StateTexas
Coordinates28.17766, -98.70591
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.
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 inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating34.9 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+11 approach)
Design loadH 20
Structure length670 ft (204.2 m)
Longest span90 ft (27.4 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic941 (2023)
Projected traffic1,317 by 2042
Trucks33%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed70.8 mi (114 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 624 over Old Nueces River Channel built?

It was built in 1964, making it 61 years old in 2025.

What condition is FM 624 over Old Nueces River Channel 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 July 2024.

How much traffic does FM 624 over Old Nueces River Channel carry?

About 941 vehicles per day (2023 count), of which roughly 33% are trucks.

How long is FM 624 over Old Nueces River Channel?

The structure is 670 ft (204.2 m) long with a longest span of 90 ft (27.4 m) and a deck 31 ft wide.

Who owns FM 624 over Old Nueces River Channel?

It is owned by the State Highway Agency.