US Bridges

FM 1320 over Pedernales River

Fair

Blanco County, Texas · 1.9 MI N of US 290 W · Structure no. 140160095404002

Built
1936
89 years old, rebuilt 1968
Condition
Fair
inspected April 2023
Type
Slab
Concrete
Length
161 ft
16 main spans
Daily traffic
337
2020 count
Owner
State
State Highway Agency

About this bridge

FM 1320 over Pedernales River is a concrete slab carrying FM 1320 over Pedernales River in Blanco County, Texas. It was built in 1936 and reconstructed in 1968, so it is 89 years old, older 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 337 vehicles a day, roughly 6% of them trucks, projected to reach 190 by 2033. The structure is 161 ft (49.1 m) long and 27 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesFM 1320
CrossesPedernales River
Location1.9 MI N of US 290 W
RouteState Highway 1320
CountyBlanco County
StateTexas
Coordinates30.27217, -98.54554
Functional classRural Minor Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans16
Design loadUnknown
Structure length161 ft (49.1 m)
Longest span10 ft (3 m)
Deck width27 ft (8.3 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic337 (2020)
Projected traffic190 by 2033
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 1320 over Pedernales River built?

It was built in 1936, making it 89 years old in 2025. It was reconstructed in 1968.

What condition is FM 1320 over Pedernales River 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 April 2023.

How much traffic does FM 1320 over Pedernales River carry?

About 337 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is FM 1320 over Pedernales River?

The structure is 161 ft (49.1 m) long with a longest span of 10 ft (3 m) and a deck 27 ft wide.

Who owns FM 1320 over Pedernales River?

It is owned by the State Highway Agency.