US Bridges

Lp 82 over San Marcos River

Fair

Hays County, Texas · 1.4 MI S of IH 35 · Structure no. 141060001609040

Built
1930
95 years old, rebuilt 1975
Condition
Fair
inspected September 2024
Type
Slab
Concrete
Length
110 ft
5 main spans
Daily traffic
18,225
2020 count
Owner
State
State Highway Agency

About this bridge

Lp 82 over San Marcos River is a concrete slab carrying Lp 82 over San Marcos River in Hays County, Texas. It was built in 1930 and reconstructed in 1975, so it is 95 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 18,225 vehicles a day, roughly 26% of them trucks, projected to reach 11,040 by 2033. The structure is 110 ft (33.5 m) long and 72 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesLp 82
CrossesSan Marcos River
Location1.4 MI S of IH 35
RouteState Highway 82
CountyHays County
StateTexas
Coordinates29.88902, -97.93411
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 alignment6: Equal to present minimum criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadUnknown
Structure length110 ft (33.5 m)
Longest span22 ft (6.7 m)
Deck width72 ft (22 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,225 (2020)
Projected traffic11,040 by 2033
Trucks26%
Lanes on structure5
Traffic directionTwo-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 Lp 82 over San Marcos River built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1975.

What condition is Lp 82 over San Marcos 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 September 2024.

How much traffic does Lp 82 over San Marcos River carry?

About 18,225 vehicles per day (2020 count), of which roughly 26% are trucks.

How long is Lp 82 over San Marcos River?

The structure is 110 ft (33.5 m) long with a longest span of 22 ft (6.7 m) and a deck 72 ft wide.

Who owns Lp 82 over San Marcos River?

It is owned by the State Highway Agency.