US Bridges

RM 3351 over Guadalupe River

Good

Kendall County, Texas · 6.9 MI SW of FM 473 · Structure no. 151310321203003

Built
1972
53 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
500 ft
2 main spans
Daily traffic
1,225
2020 count
Owner
State
State Highway Agency

About this bridge

RM 3351 over Guadalupe River is a prestressed concrete stringer/multi-beam or girder carrying RM 3351 over Guadalupe River in Kendall County, Texas. It was built in 1972, so it is 53 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 1,225 vehicles a day, roughly 3% of them trucks, projected to reach 1,530 by 2033. The structure is 500 ft (152.4 m) long and 28 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesRM 3351
CrossesGuadalupe River
Location6.9 MI SW of FM 473
RouteState Highway 3351
StateTexas
Coordinates29.89215, -98.55894
Functional classRural Major Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58 US tons
Inventory rating20 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2 (+4 approach)
Design loadH 15
Structure length500 ft (152.4 m)
Longest span100 ft (30.5 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,225 (2020)
Projected traffic1,530 by 2033
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 RM 3351 over Guadalupe River built?

It was built in 1972, making it 53 years old in 2025.

What condition is RM 3351 over Guadalupe River 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 June 2024.

How much traffic does RM 3351 over Guadalupe River carry?

About 1,225 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is RM 3351 over Guadalupe River?

The structure is 500 ft (152.4 m) long with a longest span of 100 ft (30.5 m) and a deck 28 ft wide.

Who owns RM 3351 over Guadalupe River?

It is owned by the State Highway Agency.