US Bridges

US 87 SB Ml over Cibolo Creek

Good

Wilson County, Texas · 0.20 MI SE of SH 97 · Structure no. 152470014304062

Built
1959
66 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
512 ft
3 main spans
Daily traffic
4,859
2023 count
Owner
State
State Highway Agency

About this bridge

US 87 SB Ml over Cibolo Creek is a steel continuous stringer/multi-beam or girder carrying US 87 SB Ml over Cibolo Creek in Wilson County, Texas. It was built in 1959, so it is 66 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 4,859 vehicles a day, roughly 21% of them trucks, projected to reach 13,604 by 2042. The structure is 512 ft (156.1 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 87 SB Ml
CrossesCibolo Creek
Location0.20 MI SE of SH 97
RouteU.S. Route 87
StateTexas
Coordinates29.24694, -98.02339
Functional classRural Principal Arterial - Other

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 protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52 US tons
Inventory rating31 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+6 approach)
Design loadOther
Structure length512 ft (156.1 m)
Longest span90 ft (27.4 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,859 (2023)
Projected traffic13,604 by 2042
Trucks21%
Lanes on structure2
Traffic directionOne-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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$36,000
NavigationNo navigation control on waterway

Frequently asked questions

When was US 87 SB Ml over Cibolo Creek built?

It was built in 1959, making it 66 years old in 2025.

What condition is US 87 SB Ml over Cibolo Creek 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 July 2024.

How much traffic does US 87 SB Ml over Cibolo Creek carry?

About 4,859 vehicles per day (2023 count), of which roughly 21% are trucks.

How long is US 87 SB Ml over Cibolo Creek?

The structure is 512 ft (156.1 m) long with a longest span of 90 ft (27.4 m) and a deck 31 ft wide.

Who owns US 87 SB Ml over Cibolo Creek?

It is owned by the State Highway Agency.