US Bridges

US 77 over Ham Branch

Fair

Milam County, Texas · 1.20 MI SW of FM 908 · Structure no. 171660021101054

Built
1962
63 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
175 ft
4 main spans
Daily traffic
2,752
2023 count
Owner
State
State Highway Agency

About this bridge

US 77 over Ham Branch is a concrete stringer/multi-beam or girder carrying US 77 over Ham Branch in Milam County, Texas. It was built in 1962, so it is 63 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 2,752 vehicles a day, roughly 34% of them trucks, projected to reach 3,853 by 2042. The structure is 175 ft (53.3 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS 77
CrossesHam Branch
Location1.20 MI SW of FM 908
RouteU.S. Route 77
CountyMilam County
StateTexas
Coordinates30.62278, -96.9993
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
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 geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56 US tons
Inventory rating33 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length175 ft (53.3 m)
Longest span44 ft (13.4 m)
Deck width44 ft (13.5 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,752 (2023)
Projected traffic3,853 by 2042
Trucks34%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 77 over Ham Branch built?

It was built in 1962, making it 63 years old in 2025.

What condition is US 77 over Ham Branch 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 US 77 over Ham Branch carry?

About 2,752 vehicles per day (2023 count), of which roughly 34% are trucks.

How long is US 77 over Ham Branch?

The structure is 175 ft (53.3 m) long with a longest span of 44 ft (13.4 m) and a deck 44 ft wide.

Who owns US 77 over Ham Branch?

It is owned by the State Highway Agency.