US Bridges

Lower Red Rock RD over Lentz Branch

Fair

Bastrop County, Texas · 1.0 MI NE of FM 535 · Structure no. 140110AA0108004

Built
1998
27 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
52 ft
1 main span
Daily traffic
166
2020 count
Owner
County
County Highway Agency

About this bridge

Lower Red Rock RD over Lentz Branch is a steel stringer/multi-beam or girder carrying Lower Red Rock RD over Lentz Branch in Bastrop County, Texas. It was built in 1998, so it is 27 years old, younger 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 166 vehicles a day, projected to reach 290 by 2027. The structure is 52 ft (15.9 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesLower Red Rock RD
CrossesLentz Branch
Location1.0 MI NE of FM 535
RouteCounty Highway 108
CountyBastrop County
StateTexas
Coordinates30.00164, -97.41334
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length52 ft (15.9 m)
Longest span49 ft (14.9 m)
Deck width26 ft (7.9 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic166 (2020)
Projected traffic290 by 2027
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Lower Red Rock RD over Lentz Branch built?

It was built in 1998, making it 27 years old in 2025.

What condition is Lower Red Rock RD over Lentz Branch 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 January 2024.

How much traffic does Lower Red Rock RD over Lentz Branch carry?

About 166 vehicles per day (2020 count).

How long is Lower Red Rock RD over Lentz Branch?

The structure is 52 ft (15.9 m) long with a longest span of 49 ft (14.9 m) and a deck 26 ft wide.

Who owns Lower Red Rock RD over Lentz Branch?

It is owned by the County Highway Agency.