US Bridges

US 77 Sbfr over Drainage Ditch

Good

Cameron County, Texas · 0.25 MI N of FM 2994 · Structure no. 210310003907067

Built
1961
64 years old
Condition
Good
inspected March 2023
Type
Slab
Concrete Continuous
Length
60 ft
2 main spans
Daily traffic
9,454
2021 count
Owner
State
State Highway Agency

About this bridge

US 77 Sbfr over Drainage Ditch is a concrete continuous slab carrying US 77 Sbfr over Drainage Ditch in Cameron County, Texas. It was built in 1961, so it is 64 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 9,454 vehicles a day, roughly 23% of them trucks, projected to reach 3,060 by 2030. The structure is 60 ft (18.3 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS 77 Sbfr
CrossesDrainage Ditch
Location0.25 MI N of FM 2994
RouteU.S. Route 77
CountyCameron County
StateTexas
Coordinates26.21496, -97.72154
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour evaluation has not been made
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating27 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadOther
Structure length60 ft (18.3 m)
Longest span30 ft (9.1 m)
Deck width42 ft (12.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,454 (2021)
Projected traffic3,060 by 2030
Trucks23%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 US 77 Sbfr over Drainage Ditch built?

It was built in 1961, making it 64 years old in 2025.

What condition is US 77 Sbfr over Drainage Ditch 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 March 2023.

How much traffic does US 77 Sbfr over Drainage Ditch carry?

About 9,454 vehicles per day (2021 count), of which roughly 23% are trucks.

How long is US 77 Sbfr over Drainage Ditch?

The structure is 60 ft (18.3 m) long with a longest span of 30 ft (9.1 m) and a deck 42 ft wide.

Who owns US 77 Sbfr over Drainage Ditch?

It is owned by the State Highway Agency.