US Bridges

Rancho Grande RD over Mullens Bayou

Good

Refugio County, Texas · 9.3 MI E of FM 1360 · Structure no. 161960AA0140003

Built
1986
39 years old
Condition
Good
inspected May 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
120 ft
2 main spans
Daily traffic
50
2015 count
Owner
County
County Highway Agency

About this bridge

Rancho Grande RD over Mullens Bayou is a prestressed concrete box beam or girders - multiple carrying Rancho Grande RD over Mullens Bayou in Refugio County, Texas. It was built in 1986, so it is 39 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 50 vehicles a day, projected to reach 75 by 2035. The structure is 120 ft (36.6 m) long and 20 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesRancho Grande RD
CrossesMullens Bayou
Location9.3 MI E of FM 1360
RouteCounty Highway 0
CountyRefugio County
StateTexas
Coordinates28.1395, -97.19401
Functional classRural Local

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 protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadUnknown
Structure length120 ft (36.6 m)
Longest span59 ft (18 m)
Deck width20 ft (6.1 m)
Roadway width18 ft (5.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2015)
Projected traffic75 by 2035
Trucks0%
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

OwnerCounty Highway Agency
Maintained byCounty 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 Rancho Grande RD over Mullens Bayou built?

It was built in 1986, making it 39 years old in 2025.

What condition is Rancho Grande RD over Mullens Bayou 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 May 2023.

How much traffic does Rancho Grande RD over Mullens Bayou carry?

About 50 vehicles per day (2015 count).

How long is Rancho Grande RD over Mullens Bayou?

The structure is 120 ft (36.6 m) long with a longest span of 59 ft (18 m) and a deck 20 ft wide.

Who owns Rancho Grande RD over Mullens Bayou?

It is owned by the County Highway Agency.