US Bridges

FM 1686 over Arroyo Palo Alto

Good

Victoria County, Texas · 3.46 MI S of FM 444 · Structure no. 132350113201004

Built
1955
70 years old, rebuilt 2020
Condition
Good
inspected January 2023
Type
Culvert
Concrete
Length
33 ft
3 main spans
Daily traffic
170
2013 count
Owner
State
State Highway Agency

About this bridge

FM 1686 over Arroyo Palo Alto is a concrete culvert carrying FM 1686 over Arroyo Palo Alto in Victoria County, Texas. It was built in 1955 and reconstructed in 2020, so it is 70 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 170 vehicles a day, roughly 16% of them trucks, projected to reach 240 by 2033. The structure is 33 ft (10.1 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesFM 1686
CrossesArroyo Palo Alto
Location3.46 MI S of FM 444
RouteState Highway 1686
StateTexas
Coordinates28.75677, -96.83471
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2023
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 rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length33 ft (10.1 m)
Longest span10 ft (3 m)
Deck width31 ft (9.5 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic170 (2013)
Projected traffic240 by 2033
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 1686 over Arroyo Palo Alto built?

It was built in 1955, making it 70 years old in 2025. It was reconstructed in 2020.

What condition is FM 1686 over Arroyo Palo Alto 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 January 2023.

How much traffic does FM 1686 over Arroyo Palo Alto carry?

About 170 vehicles per day (2013 count), of which roughly 16% are trucks.

How long is FM 1686 over Arroyo Palo Alto?

The structure is 33 ft (10.1 m) long with a longest span of 10 ft (3 m) and a deck 31 ft wide.

Who owns FM 1686 over Arroyo Palo Alto?

It is owned by the State Highway Agency.