SH 16 over Arroyo Costa Rica

Good

Zapata County, Texas · 1.18 Mile East of US 83 · Structure no. 212530051707110

Built: 2009; 16 years old
Condition: Good; inspected August 2024
Type: Culvert; Concrete
Length: 31 ft; 2 main spans
Daily traffic: 3,557; 2024 count
Owner: State; State Highway Agency

About this bridge

SH 16 over Arroyo Costa Rica is a concrete culvert carrying SH 16 over Arroyo Costa Rica in Zapata County, Texas. It was built in 2009, so it is 16 years old, younger 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 3,557 vehicles a day, roughly 33% of them trucks, projected to reach 4,580 by 2033. The structure is 31 ft (9.4 m) long and 85 ft wide. If it were closed, the detour would be 13 mi (21 km).

Location

Open in Google Maps

CarriesSH 16

CrossesArroyo Costa Rica

Location1.18 Mile East of US 83

RouteState Highway 16

CountyZapata County

StateTexas

Coordinates26.92226, -99.24894

Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

Component	Rating	Meaning
Channel and channel protection	6 Satisfactory	Structural elements show some minor deterioration.
Culvert	7 Good	Some minor problems.

Last inspectionAugust 2024

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourFoundations stable; scour above top of footing

Structural evaluation6: Equal to present minimum criteria

Deck geometry4: Meets minimum tolerable limits to be left in place as is

Waterway adequacy9: Superior to present desirable criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating36 US tons

Inventory rating27 US tons

Structure

Structure typeCulvert

MaterialConcrete

DeckConcrete, cast-in-place

Main spans2

Design loadUnknown

Structure length31 ft (9.4 m)

Longest span10 ft (3 m)

Deck width85 ft (26 m)

Roadway width64 ft (19.5 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,557 (2024)

Projected traffic4,580 by 2033

Trucks33%

Lanes on structure5

Traffic directionTwo-way traffic

CarriesHighway and pedestrian

CrossesWaterway

Detour if closed13 mi (21 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 proposedNone recorded

Estimated improvement cost—

NavigationNo navigation control on waterway

Frequently asked questions

When was SH 16 over Arroyo Costa Rica built?

It was built in 2009, making it 16 years old in 2025.

What condition is SH 16 over Arroyo Costa Rica 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 August 2024.

How much traffic does SH 16 over Arroyo Costa Rica carry?

About 3,557 vehicles per day (2024 count), of which roughly 33% are trucks.

How long is SH 16 over Arroyo Costa Rica?

The structure is 31 ft (9.4 m) long with a longest span of 10 ft (3 m) and a deck 85 ft wide.

Who owns SH 16 over Arroyo Costa Rica?

It is owned by the State Highway Agency.