US Bridges

IH 35 SB Off Ramp over On-Ramp & San Pedro Crk

Fair

Bexar County, Texas · 0.6 MI N of IH 10 · Structure no. 150150001710354

Built
1988
37 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
1,082 ft
3 main spans
Daily traffic
50
2013 count
Owner
State
State Highway Agency

About this bridge

IH 35 SB Off Ramp over On-Ramp & San Pedro Crk is a prestressed concrete stringer/multi-beam or girder carrying IH 35 SB Off Ramp over On-Ramp & San Pedro Crk in Bexar County, Texas. It was built in 1988, so it is 37 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 50 vehicles a day, roughly 5% of them trucks, projected to reach 70 by 2033. The structure is 1,082 ft (329.8 m) long and 26 ft wide.

CarriesIH 35 SB Off Ramp
CrossesOn-Ramp & San Pedro Crk
Location0.6 MI N of IH 10
RouteInterstate 35
StateTexas
Coordinates29.40508, -98.51102
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3 (+9 approach)
Design loadHS 20
Structure length1,082 ft (329.8 m)
Longest span115 ft (35.1 m)
Deck width26 ft (7.9 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2013)
Projected traffic70 by 2033
Trucks5%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 IH 35 SB Off Ramp over On-Ramp & San Pedro Crk built?

It was built in 1988, making it 37 years old in 2025.

What condition is IH 35 SB Off Ramp over On-Ramp & San Pedro Crk 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 May 2024.

How much traffic does IH 35 SB Off Ramp over On-Ramp & San Pedro Crk carry?

About 50 vehicles per day (2013 count), of which roughly 5% are trucks.

How long is IH 35 SB Off Ramp over On-Ramp & San Pedro Crk?

The structure is 1,082 ft (329.8 m) long with a longest span of 115 ft (35.1 m) and a deck 26 ft wide.

Who owns IH 35 SB Off Ramp over On-Ramp & San Pedro Crk?

It is owned by the State Highway Agency.