US Bridges

US 87 over Marshall Creek

Good

Gillespie County, Texas · 4.00 MI N of RM 648 · Structure no. 140870007106063

Built
1956
69 years old
Condition
Good
inspected June 2023
Type
Culvert
Concrete
Length
33 ft
3 main spans
Daily traffic
2,921
2020 count
Owner
State
State Highway Agency

About this bridge

US 87 over Marshall Creek is a concrete culvert carrying US 87 over Marshall Creek in Gillespie County, Texas. It was built in 1956, so it is 69 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 2,921 vehicles a day, roughly 20% of them trucks, projected to reach 3,070 by 2033. The structure is 33 ft (10.1 m) long and 45 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesUS 87
CrossesMarshall Creek
Location4.00 MI N of RM 648
RouteU.S. Route 87
StateTexas
Coordinates30.45187, -98.98518
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating44.6 US tons
Inventory rating26.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length33 ft (10.1 m)
Longest span10 ft (3 m)
Deck width45 ft (13.8 m)
Roadway width42 ft (12.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,921 (2020)
Projected traffic3,070 by 2033
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 US 87 over Marshall Creek built?

It was built in 1956, making it 69 years old in 2025.

What condition is US 87 over Marshall 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 June 2023.

How much traffic does US 87 over Marshall Creek carry?

About 2,921 vehicles per day (2020 count), of which roughly 20% are trucks.

How long is US 87 over Marshall Creek?

The structure is 33 ft (10.1 m) long with a longest span of 10 ft (3 m) and a deck 45 ft wide.

Who owns US 87 over Marshall Creek?

It is owned by the State Highway Agency.